An exact transverse Helmholtz equation (2009)
Crosignani, Bruno, Di Porto, Paolo, Yariv, Amnon
We derive an exact equation for the transverse component of the electric field propagating along a given longitudinal z direction in the presence of an isotropic refractive-index distribution n(x,y).
Precise control of broadband frequency chirps using optoelectronic feedback (2009)
Satyan, Naresh, Vasilyev, Arseny, Rakuljic, George, Leyva, Victor, Yariv, Amnon
We demonstrate the generation of wideband frequency sweeps using a semiconductor laser in an optoelectronic feedback loop. The rate and shape of the optical frequency sweep is locked to and...
Grating induced transparency (GIT) and the dark mode in optical waveguides (2009)
We propose and describe a new class of optical modes consisting of superposition of three waveguide modes which can be supported by a few-mode waveguide spatially modulated by two co-spatial...
Coherence Cloning Using Semiconductor Laser Optical Phase-Lock Loops (2009)
Satyan, Naresh, Liang, Wei, Yariv, Amnon
We demonstrate the concept of coherence cloning where the coherence properties of a high-quality spectrally stabilized fiber laser are transferred to a commercially available high-power DFB...
As Part III of this series, this paper focuses on an above-threshold modal analysis which includes gain saturation effects in the surface-emitting chirped circular grating lasers. We derive an exact...
As Part III of this series, this paper focuses on an above-threshold modal analysis which includes gain saturation effects in the surface-emitting chirped circular grating lasers. We derive an exact...
Electrically pumped hybrid evanescent Si/InGaAsP lasers (2009)
Sun, Xiankai, Zadok, Avi, Shearn, Michael J., Diest, Kenneth A., Ghaffari, Alireza, Atwater, Harry A., ...
Hybrid Si/III-V, Fabry-Perot evanescent lasers are demonstrated, utilizing InGaAsP as the III-V gain material for the first time to our knowledge. The lasing threshold current of 300-μm-long devices...
Coherent power combination of semiconductor lasers using optical phase-lock loops (2009)
Satyan, Naresh, Liang, Wei, Kewitsch, Anthony, Rakuljic, George, Yariv, Amnon
Heterodyne optical phase-lock loops (OPLLs) enable the precise electronic control over the frequency and phase of a semiconductor laser (SCL) locked to a ldquomasterrdquo reference laser. One of the...
Sun, Xiankai, Liu, Hsi-Chun, Yariv, Amnon
By analyzing the propagating behavior of the supermodes in a coupled-waveguide system, we have derived a universal criterion for designing adiabatic mode transformers. The criterion relates ε, the...
This is a continuation of our previous work [Opt. Express 16, 9155 (2008)]. In this paper we investigate the effect of nonuniform pumping on the modal properties of surface-emitting chirped circular...
This is a continuation of our previous work [Opt. Express 16, 9155 (2008)]. In this paper we investigate the effect of nonuniform pumping on the modal properties of surface-emitting chirped circular...
Shayan Mookherjea, Amnon Yariv, A. Tombrello, S. Cohen, David B. Rutledge, Axel Scherer
Translight is based on the Transfer Matrix Method developed by J. Pendry,
Secure key generation using an ultra-long fiber laser: transient analysis and experiment (2008)
Zadok, Avi, Scheuer, Jacob, Sendowski, Jacob, Yariv, Amnon
The secure distribution of a secret key is the weakest point of shared-key encryption protocols. While quantum key distribution schemes could theoretically provide unconditional security, their...
Phase-Controlled Apertures Using Heterodyne Optical Phase-Locked Loops (2008)
Satyan, Naresh, Liang, Wei, Aflatouni, Firooz, Yariv, Amnon, Kewitsch, Anthony, Rakuljic, George, ...
In this letter, we demonstrate the use of an electronic feedback scheme using a voltage controlled oscillator (VCO) to control the optical phase of individual semiconductor lasers (SCLs) phase locked...
Engineering supermode silicon/III-V hybrid waveguides for laser oscillation (2008)
We analyze a silicon/III-V hybrid semiconductor waveguide structure for laser oscillation. We show that, by optimally designing and controlling the resonant supermode behavior in such structures, the...
The Beginnings of Optoelectronic Integrated Circuits -— A Personal Perspective (2008)
The early work (1960s, 1970s) on Integrated Optics at the Bell Telephone Laboratories and at the California Institute of Technology (Caltech), with which the author was involved, is described from a...
0740-3224/96/020387-01$06.00 ©1996 Optical Society of America (2008)
Joseph Rosen, Boaz Salik, Amnon Yariv, J. Rosen, B. Salik, A. Yariv
Pseudo-nondiffracting beams generated
Zhu, Lin, Sun, Xiankai, DeRose, Guy A., Scherer, Axel, Yariv, Amnon
We report the first room temperature CW operation of two dimensional single-mode edge-emitting photonic crystal Bragg lasers. Single-mode lasing with single-lobed, diffraction limited far-fields is...
Modal properties and modal control in vertically emitting annular Bragg lasers (2007)
The modal properties, including the resonant vertical radiation, of a type of laser structures based on the annular Bragg resonance (ABR) are studied in detail. The modal threshold gains and the...
Coherent beam combining with multilevel optical phase-locked loops (2007)
Liang, Wei, Satyan, Naresh, Aflatouni, Firooz, Yariv, Amnon, Kewitsch, Anthony, Rakuljic, George, ...
Coherent beam combining (CBC) technology holds the promise of enabling laser systems with very high power and near-ideal beam quality. We propose and demonstrate a novel servo system composed of...
Reconstruction of Longitudinal Distributed Incoherent Sources (2007)
Joseph Rosen And, Joseph Rosen, Amnon Yariv
same manner as appears in a coherently photographed hologram. The complex distribution of this degree of coherence is actually analogous to a Fourier hologram. Therefore, by illuminating a hologram...
Slowing light with Fabry-Perot resonator arrays (2007)
Poon, Joyce K. S., Chak, Philip, Choi, John M., Yariv, Amnon
We analyze the transmission of light through coupled-resonator optical waveguides in the form of evanescently coupled Fabry-Perot resonator arrays. We develop a transfer matrix method to calculate...
Zhu, Lin, Scherer, Axel, Yariv, Amnon
We use a transfer matrix method to analyze the modal gain of transverse Bragg resonance (TBR) structures. We show that these TBR structures can support two types of modes characterized by different...
Active coupled-resonator optical waveguides. I. Gain enhancement and noise (2007)
Poon, Joyce K. S., Yariv, Amnon
We use a tight-binding formalism in the time domain to analyze the effect of resonant gain enhancement and spontaneous emission noise in amplifying coupled-resonator optical waveguides (CROWs). We...
Poon, Joyce K. S., Zhu, Lin, Choi, John M., DeRose, Guy A., Scherer, Axel, Yariv, Amnon
We investigate active, electrically pumped coupled-resonator optical waveguides (CROWs) in the form of InP-InGaAsP Fabry-Perot resonator arrays. We discuss the fabrication of these devices and...
Spatial modal control of two-dimensional photonic crystal Bragg lasers (2007)
Zhu, Lin, Sun, Xiankai, DeRose, Guy A., Scherer, Axel, Yariv, Amnon
We investigate the modal losses and field distributions of different order transverse modes supported by the photonic crystal Bragg structure using a transfer matrix method. We find that only the...
Yariv, Amnon, Scheuer, Jacob, Crosignani, Bruno, Di Porto, Paolo
The intriguing midair oscillations of a party balloon, which occur once its buoyancy is no longer capable of keeping it against the ceiling, is shown to require a rather sophisticated explanation in...
Supermode Si/III-V hybrid lasers, optical amplifiers and modulators: A proposal and analysis (2007)
We describe a hybrid laser structure which consists of an amplifying III-V waveguide proximity-coupled to a passive Si waveguide. By operating near the synchronism point (where the phase velocities...
Optical bright and dark states in side-coupled resonator structures (2007)
Chak, Philip, Poon, Joyce K. S., Yariv, Amnon
We analyze side-coupled standing-wave cavity structures consisting of Fabry-Perot and photonic crystal resonators coupled to two waveguides. We show that optical bright and dark states, analogous to...
Zhu, Lin, Sun, Xiankai, DeRose, Guy A., Scherer, Axel, Yariv, Amnon
The authors demonstrate an electrically pumped, single-mode, large-area, edge-emitting InGaAsP/InP two dimensional photonic crystal Bragg laser operating in continuous-wave condition. The laser uses...
Electrically pumped edge-emitting photonic crystal lasers with angled facets (2007)
Zhu, Lin, DeRose, Guy A., Scherer, Axel, Yariv, Amnon
We demonstrate electrically pumped large-area edge-emitting InGaAsP/InP two-dimensional photonic crystal lasers with angled facets at room temperature. The laser uses a weak index perturbation...
Electrically-pumped, broad-area, single-mode photonic crystal lasers (2007)
Zhu, Lin, Chak, Philip, Poon, Joyce K. S., DeRose, Guy A., Yariv, Amnon, Scherer, Axel
Planar broad-area single-mode lasers, with modal widths of the order of tens of microns, are technologically important for high-power applications and improved coupling efficiency into optical...
Liang, Wei, Satyan, Naresh, Yariv, Amnon, Kewitsch, Anthony, Rakuljic, George, Aflatouni, Firooz, ...
Using heterodyne Optical Phase-Locked Loops (OPLLs), two 1W high power 1550 nm master-oscillator-power-amplifier (MOPA) semiconductor lasers operating as current controlled oscillators are...
Sun, Xiankai, Scheuer, Jacob, Yariv, Amnon
We derive a comprehensive coupled-mode theory, including resonant vertical emission effects, for the analysis of nonperiodic circular Bragg lasers. We derive the governing characteristic equation for...
Coherent combining of the output of two semiconductor lasers using optical phase-lock loops (2007)
Liang, Wei, Yariv, Amnon, Kewitsch, Anthony, Rakuljic, George
We have experimentally demonstrated current-injection optical phase-lock loops (OPLLs) based on commercial single-section semiconductor distributed-feedback (DFB) lasers. Using two parallel OPLLs, we...
Coherent combining of the output of two semiconductor lasers using optical phase-lock loops (2007)
Liang, Wei, Yariv, Amnon, Kewitsch, Anthony, Rakuljic, George
We have experimentally demonstrated current-injection optical phase-lock loops (OPLLs) based on commercial single-section semiconductor distributed-feedback (DFB) lasers. Using two parallel OPLLs, we...
Direct Measurement of Population-Induced Broadening of Quantum Well Intersubband Transitions (2007)
Xu, Yuanjian, Almogy, Gilad, O'Brien, John, Shakouri, Ali, Xu, Weihua, Salvatore, Randal A., ...
In the single band model, also known as the parabolic effective mass model, intersubband transitions in quantum wells (QWs) are discrete. In practice, electron-electron interaction, QW width...
Xu, Yuanjian, Xhakouri, Ali, Yariv, Amnon
Analyzing the photocurrent spectra and the I-V characteristics of weakly coupled GaAs/AlGaAs multiquantum well structures, different transport regimes are distinguished. At low temperatures (below...
Xu, Yuanjian, Shakouri, Ali, Yariv, Amnon
An observation of quantum interference effect in photocurrent spectra of a weakly coupled bound-to-continuum multiple quantum well photodetector is reported. This effect persists even at high biases...
Two-dimensional Bragg grating lasers defined by electron-beam lithography (2006)
DeRose, Guy A., Zhu, Lin, Choi, John M., Poon, Joyce K. S., Yariv, Amnon, Scherer, Axel
Two-dimensional Bragg grating (2DBG) lasers with two quarter-wave slip line defects have been designed and fabricated by electron-beam lithography and reactive ion etching. Unlike conventional...
Giant Fiber Lasers: A New Paradigm for Secure Key Distribution (2006)
We propose and analyze a new concept for secure key distribution based on establishing laser oscillations between the sender and receiver. Compared to quantum mechanics based systems, our scheme...
Modification of spontaneous emission in Bragg onion resonators (2006)
Liang, Wei, Huang, Yanyi, Yariv, Amnon, Xu, Yong, Lin, Shawn-Yu
We formulated an analytical model and analyzed the modification of spontaneous emission in Bragg onion resonators. We consider both the case of a single light emitter and a uniformly distributed...
Fabrication and characterization of low-loss polymeric waveguides and micro-resonators (2006)
We realize low loss, single-mode polymer waveguides and microring resonators in SU-8 (MichroChem) using direct E-beam lithography. We also present and demonstrate a novel and simple approach for...
Electrically pumped two-dimensional Bragg grating lasers (2006)
Zhu, Lin, Choi, John M., DeRose, Guy A., Yariv, Amnon, Scherer, Axel
We demonstrate electrically pumped InGaAsP two-dimensional Bragg grating (2DBG) lasers with two line defects. The 2DBG structure uses a weak 2D index perturbation surface grating to control the...
On the limits of validity of nonparaxial propagation equations in Kerr media (2006)
Ciattoni, Alesasandro, Crosignani, Bruno, Di Porto, Paolo, Scheuer, Jacob, Yariv, Amnon
Recent generalizations of the standard nonlinear Schroedinger equation (NLSE), aimed at describing nonparaxial propagation in Kerr media are examined. An analysis of their limitations, based on...
Spiro-oxazine photochromic fiber optical switch (2006)
Huang, Yanyi, Liang, Wei, Poon, Joyce K. S., Xu, Yong, Lee, Reginald K., Yariv, Amnon
A photochromic all-optical switch in telecommunication-grade fiber is fabricated by filling a fiber Bragg grating Fabry-Pérot resonator with a spiro-oxazine solution. The narrow linewidth of the...
Polymer Microring Coupled-Resonator Optical Waveguides (2006)
Poon, Joyce K. S., Zhu, Lin, DeRose, Guy A., Yariv, Amnon
We present measurements of the transmission and dispersion properties of coupled-resonator optical waveguides (CROWs) consisting of weakly coupled polymer microring resonators. The fabrication and...
Zhu, Lin, Huang, Yanyi, Yariv, Amnon
We demonstrate the integration of a 3-dB multimode interference coupler with a corrugated sidewall Bragg grating in planar polymer waveguides by direct electron beam writing. Both transmission and...
Transmission and group delay of microring coupled-resonator optical waveguides (2006)
Poon, Joyce K. S., Zhu, Lin, DeRose, Guy A., Yariv, Amnon
We measured the transmission and group delay of microring coupled-resonator optical waveguides (CROWs). The CROWs consisted of 12 weakly coupled, microring resonators fabricated in optical polymers...
Transmission characteristics of a Fabry-Perot etalon-microtoroid resonator coupled system (2006)
Liang, Wei, Yang, Lan, Poon, Joyce K. S., Huang, Yanyi, Vahala, Kerry J., Yariv, Amnon
The transmission spectra of a Fabry-Perot etalon coupled to a microtoroid resonator are studied theoretically and experimentally. The resonance line shapes depend strongly on the resonance wavelength...
Sagnac Effect in Coupled-Resonator Slow-Light Waveguide Structures (2006)
We study the effect of rotation on the propagation of electromagnetic waves in slow-light waveguide structures consisting of coupled microring resonators. We show that such configurations exhibit a...
A classical key distribution system based on Johnson (like) noise - How secure? (2006)
We present a comprehensive analysis of the Johnson (like) noise based classical key-distribution scheme presented by Kish [1]. We suggest two passive attack strategies that enable an adversary to...
Optical, Electronic and Optoelectronic Material and Device Research (2006)
During the contract period of 1990-1993 we have continued our research effort on semiconductor lasers (SCLs) by investigating the fundamental limits of SCLs, which are often the limiting factors in...
Scheuer, Jacob, Paloczi, George T., Yariv, Amnon
We present an all optically tunable wavelength-selective reflector for planar lightwave technology based on coupled microring resonators. By employing the Vernier effect, we demonstrate narrow-band...
Integrated microfluidic variable optical attenuator (2005)
Zhu, Lin, Huang, Yanyi, Yariv, Amnon
We fabricate and measure a microfluidic variable optical attenuator, which consists of an optical waveguide integrated with a microfluidic channel. An opening is introduced in the upper cladding of...
Optimization of circular photonic crystal cavities – beyond coupled mode theory (2005)
Chang, Derek, Scheuer, Jacob, Yariv, Amnon
We study comprehensively using numerical simulations a new class of resonators, based on a circular photonic crystal reflector. The dependence of the resonator characteristics on the reflector design...
A methodology for treating the semiconductor laser as a current-controlled oscillator in an optical phase-lock loop is presented. The formalism is applied to phase demodulation of optical beams,...
Huang, Yanyi, Poon, Joyce K. S., Liang, Wei, Yariv, Amnon, Zhang, Cheng, Dalton, Larry R.
By combining a solid-state photoreaction model with the modal solutions of an optical waveguide, we simulate the refractive index change due to the photobleaching of CLD-1 chromophores in an...
Perfect optical solitons: spatial Kerr solitons as exact solutions of Maxwell's equations (2005)
Ciattoni, Alessandro, Crosignani, Bruno, Di Porto, Paolo, Yariv, Amnon
We prove that spatial Kerr solitons, usually obtained in the frame of a nonlinear Schrodinger equation valid in the paraxial approximation, can be found in a generalized form as exact solutions of...
Lasing from a circular Bragg nanocavity with an ultrasmall modal volume (2005)
Scheuer, Jacob, Green, William M. J., DeRose, Guy A., Yariv, Amnon
We demonstrate single-mode lasing at telecommunication wavelengths from a circular nanocavity employing a radial Bragg reflector. Ultrasmall modal volumes and submilliwatt pump thresholds level are...
Lasing from a circular Bragg nanocavity with an ultra-small modal volume (2005)
Scheuer, Jacob, Green, William M. J., DeRose, Guy A., Yariv, Amnon
We demonstrate single-mode lasing at telecommunication wavelengths from a circular nanocavity employing a radial Bragg reflector. Ultra-small modal volume and Sub milliwatt pump threshold level are...
Highly sensitive fiber Bragg grating refractive index sensors (2005)
Liang, Wei, Huang, Yanyi, Xu, Yong, Lee, Reginald K., Yariv, Amnon
We combine fiber Bragg grating (FBG) technology with a wet chemical etch-erosion procedure and demonstrate two types of refractive index sensors using single-mode optical fibers. The first index...
Green, William M. J., Lee, Reginald K., DeRose, Guy A., Scherer, Axel, Yariv, Amnon
An InGaAsP-InP optical switch geometry based on electrical control of waveguide-resonator coupling is demonstrated. Thermooptic tuning of a Mach-Zehnder interferometer integrated with a racetrack...
Nonparaxial dark solitons in optical Kerr media (2005)
Ciattoni, Alessandro, Crosignani, Bruno, Mookherjea, Shayan, Yariv, Amnon
We show that the nonlinear equation that describes nonparaxial Kerr propagation, together with the already reported bright-soliton solutions, admits of (1 + 1)D dark-soliton solutions. Unlike their...
InGaAsP Annular Bragg Lasers: Theory, Applications, and Modal Properties (2005)
Scheuer, Jacob, Green, William M. J., DeRose, Guy A., Yariv, Amnon
A novel class of circular resonators, based on a radial defect surrounded by Bragg reflectors, is studied in detail. Simple rules for the design and analysis of such structures are derived using a...
Compact Microring-Based Wavelength-Selective Inline Optical Reflector (2005)
Paloczi, George T., Scheuer, Jacob, Yariv, Amnon
We present a novel design for a compact planar integrated optic reflector based on a microring resonator add–drop wavelength-selective filter. Good agreement is found between the theoretical...
Coupled Resonator Optical Waveguides: Toward the Slowing and Storage of Light (2005)
Scheuer, Jacob, Paloczi, George T., Poon, Joyce K. S., Yariv, Amnon
The development of a simple, solid-state-based technology to slow the propagation of light could prove an important step in the realization of the high-bit-rate communication systems of the future....
InGaAsP annular Bragg lasers: theory, applications and modal properties (2005)
Scheuer, Jacob, Green, William M. J., DeRose, Guy A., Yariv, Amnon
A novel class of circular resonators, based on a radial defect surrounded by Bragg reflectors, is studied in detail. Simple rules for the design and analysis of such structures are derived using a...
Huang, Yanyi, Xu, Yong, Yariv, Amnon
We develop a method for the fabrication of functional microstructured optical fibers (MOFs) by selectively filling the air holes with liquid phase materials, where we utilize the dependence of...
Wide-range tuning of polymer microring resonators by the photobleaching of CLD-1 chromophores (2004)
Poon, Joyce K. S., Huang, Yanyi, Paloczi, George T., Yariv, Amnon, Zhang, Cheng, Dalton, Larry R.
We present a simple and effective method for the postfabrication trimming of optical microresonators. We photobleach CLD-1 chromophores to tune the resonance wavelengths of polymer microring...
Low-threshold two-dimensional annular Bragg lasers (2004)
Scheuer, Jacob, Green, William M. J., DeRose, Guy, Yariv, Amnon
Lasing at telecommunication wavelengths from annular resonators employing radial Bragg reflectors is demonstrated at room temperature under pulsed optical pumping. Submilliwatt pump threshold levels...
Soft lithography replica molding of critically coupled polymer microring resonators (2004)
Poon, Joyce K. S., Huang, Yanyi, Paloczi, George T., Yariv, Amnon
We use soft lithography replica molding to fabricate unclad polystyrene (PS) and clad SU-8 microring resonator filters. The PS resonator has an intrinsic quality factor of 1.0/spl times/10/sup 4/ at...
Green, William M. J., Scheuer, Jacob, DeRose, Guy A., Yariv, Amnon, Scherer, Axel
Optical microresonators based on an annular geometry of radial Bragg reflectors have been designed and fabricated by electron-beam lithography, reactive ion etching, and an epitaxial transfer...
Perfect Optical Solitons: Spatial Kerr Solitons as Exact Solutions of Maxwell's Equations (2004)
Ciattoni, Alessandro, Crosignani, Bruno, Di Porto, Paolo, Yariv, Amnon
We prove that spatial Kerr solitons, usually obtained in the frame of nonlinear Schroedinger equation valid in the paraxial approximation, can be found in a generalized form as exact solutions of...
Vertically emitting annular Bragg lasers using polymer epitaxial transfer (2004)
Green, William M. J., Scheuer, Jacob, DeRose, Guy, Yariv, Amnon
Fabrication of a planar semiconductor microcavity, composed of cylindrical Bragg reflectors surrounding a radial defect, is demonstrated. A versatile polymer bonding process is used to transfer...
Huang, Yanyi, Paloczi, George T., Poon, Joyce K. S., Yariv, Amnon
We develop a method to efficiently fabricate three-dimensional multilayer polymer microchips for integrated optical applications. This method uses soft lithography to mold the core structures on top...
Ciattoni, Alessandro, Crosignani, Bruno, Di Porto, Paolo, Yariv, Amnon
Spatial Kerr solitons, typically associated with the standard paraxial nonlinear Schroedinger equation, are shown to exist to all nonparaxial orders, as exact solutions of Maxwell's equations in the...
Transverse Bragg-resonant enhancement of modulation and switching (2004)
Liang, Wei, Xu, Yong, Choi, John M., Yariv, Amnon, Ng, Willie
We demonstrate theoretically that the electrooptic phase retardation, hence, modulation, can be enhanced very substantially in transverse Bragg resonance (TBR) waveguides. This enhancement is due...
Annular Bragg Defect mode Resonators (2004)
We propose and analyze a new type of a resonator in an annular geometry which is based on a single defect surrounded by radial Bragg reflectors on both sides. We show that the conditions for...
Low Threshold Two-Dimensional Annular Bragg Lasers (2004)
Scheuer, Jacob, Green, William M. J., DeRose, Guy, Yariv, Amnon
Lasing at telecommunication wavelengths from annular resonators employing radial Bragg reflectors is demonstrated at room temperature under pulsed optical pumping. Sub milliwatt pump threshold levels...
Replica-molded electro-optic polymer Mach–Zehnder modulator (2004)
Paloczi, George T., Huang, Yanyi, Yariv, Amnon, Luo, Jingdong, Jen, Alex K.-Y.
A Mach-Zehnder electro-optic polymer amplitude modulator is fabricated by a simple and high-throughput soft-stamp replica-molding technique. The modulator structure incorporates the highly nonlinear...
Designing coupled-resonator optical waveguide delay lines (2004)
Poon, Joyce K. S., Scheuer, Jacob, Xu, Yong, Yariv, Amnon
We address the trade-offs among delay, loss, and bandwidth in the design of coupled-resonator optical waveguide (CROW) delay lines. We begin by showing the convergence of the transfer matrix,...
An optimal feedforward design for complete PMD compensation up to the second order (2004)
Ouyang, George, Eyal, Avishay, Yariv, Amnon
As an extension to a previous paper, this paper describes the optimization of a second-order, feedforward polarization-mode dispersion (PMD) compensation scheme by reducing its degrees of freedom...
Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports (2004)
Vienne, Guillaume, Xu, Yong, Jakobsen, Christian, Deyerl, Hans-Jürgen, Jensen, Jesper B., Sørensen, Thorkild, ...
We demonstrate a new class of hollow-core Bragg fibers that are composed of concentric cylindrical silica rings separated by nanoscale support bridges. We theoretically predict and experimentally...
Paloczi, George T., Huang, Yanyi, Scheuer, Jacob, Yariv, Amnon
Soft lithography molding is a promising technique for patterning polymer integrated optical devices, however the presence of a background residue has the potential to limit the usefulness of this...
Crosignani, Bruno, Yariv, Amnon, Mookherjea, Shayan
We investigate nonlinear propagation in the presence of the optical Kerr effect by relying on a rigorous generalization of the standard parabolic equation that includes nonparaxial and vectorial...
Wavelength-selective reflector based on a circular array of coupled microring resonators (2004)
Poon, Joyce K. S., Scheuer, Jacob, Yariv, Amnon
We propose and analyze a novel type of wavelength-selective reflector for planar lightwave technology based on a circular array of coupled microring resonators. Narrow-band reflection peaks can be...
Modal analysis of Bragg onion resonators (2004)
Xu, Yong, Liang, Wei, Yariv, Amnon, Fleming, James G., Lin, Shawn-Yu
From analysis of the high Q modes in a Bragg onion resonator with an omnidirectional reflector cladding, we establish a close analogy between such a resonator and a spherical hollow cavity in perfect...
Loss optimization of transverse Bragg resonance waveguides (2004)
Choi, John M., Liang, Wei, Xu, Yong, Yariv, Amnon
Coupled-mode theory was used to analyze guiding in a transverse Bragg resonance (TBR) waveguide structure composed of a GaAs substrate with air holes. This analysis predicts that propagation loss...
Mie scattering analysis of spherical Bragg “onion” resonators (2004)
Liang, Wei, Xu, Yong, Huang, Yanyi, Yariv, Amnon, Fleming, J. G., Lin, Shawn-Yu
Combining the Mie scattering theory and a transfer matrix method, we investigate in detail the scattering of light by spherical Bragg “onion” resonators. We classify the resonator modes into two...
Wavelength-insensitive nonadiabatic mode evolution couplers (2004)
Paloczi, George T., Eyal, Avishay, Yariv, Amnon
We investigate the wavelength insensitivity and fabrication error tolerance of the relative output amplitude and phase for a new type of optical coupler. This new coupler overcomes the long-length...
Matrix analysis of microring coupled-resonator optical waveguides (2004)
Poon, Joyce K. S., Scheuer, Jacob, Mookherjea, Shayan, Paloczi, George T., Huang, Yanyi, Yariv, Amnon
We use the coupling matrix formalism to investigate continuous-wave and pulse propagation through microring coupled-resonator optical waveguides (CROWs). The dispersion relation agrees with that...
We utilize a novel coupled-waves approach to design and analyze various types of annular resonators based on Bragg and photonic crystal reflectors. Optimal grating profiles and their corresponding...
High-quality-factor Bragg onion resonators with omnidirectional reflector cladding (2003)
Xu, Yong, Liang, Wei, Yariv, Amnon, Fleming, J. G., Lin, Shawn-Yu
We propose to approximate a spherically symmetric Bragg resonator in an onionlike geometry. We develop a transfer-matrix theory for calculation of the quality factors and analyze the effect of the...
Engineering transverse Bragg resonance waveguides for large modal volume lasers (2003)
Liang, Wei, Xu, Yong, Choi, John M., Yariv, Amnon
We recently analyzed a new class of laser amplifier based on transverse Bragg reflection. We show that the unique properties of Bragg confinement make it possible through modal loss discrimination to...
Annular Bragg defect mode resonators (2003)
We propose and analyze a new type of a resonator in an annular geometry that is based on a single defect surrounded by radial Bragg reflectors on both sides. We show that the conditions for efficient...
Optical annular resonators based on radial Bragg and photonic crystal reflectors (2003)
A ring resonator based on Bragg reflection is studied in detail. Closed form expressions for the field and dispersion curves for radial Bragg gratings and photonic crystals based resonators are...
Polymeric Mach-Zehnder interferometer using serially coupled microring resonators (2003)
Paloczi, George T., Huang, Yanyi, Yariv, Amnon, Mookherjea, Shayan
We propose a novel geometry for a Mach-Zehnder interferometer in which one arm of the interferometer consists of serially coupled microresonators and the other a simple ridge waveguide. The device...
Loss analysis of air-core photonic crystal fibers (2003)
By using a multipole moment approach, we analyze the loss of an air-core photonic crystal fiber and demonstrate that it is possible reduce the transmission loss that is due to photon radiation...
Soft lithography replication of polymeric microring optical resonators (2003)
Huang, Yanyi, Paloczi, George T., Scheuer, Jacob, Yariv, Amnon
We have developed a soft lithography method to replicate polymeric integrated optical devices. In this method, the master device and the molded replica are made of the same materials, allowing direct...
Two-dimensional optical ring resonators based on radial Bragg resonance (2003)
A Bragg-reflection-based ring resonator is proposed and analyzed. Closed-form expressions for the field and dispersion curves for radial Bragg gratings and photonic bandgap crystals are derived. The...
Asymptotic analysis of silicon based Bragg fibers (2003)
Xu, Yong, Yariv, Amnon, Fleming, James G., Lin, Shawn-Yu
We developed an asymptotic formalism that fully characterizes the propagation and loss properties of a Bragg fiber with finite cladding layers. The formalism is subsequently applied to miniature...
Transverse Bragg resonance laser amplifier (2003)
Yariv, Amnon, Xu, Yong, Mookherjea, Shayan
We propose and analyze a new type of optical amplifier that is formed by addition of gain in the periodic cladding of a transverse Bragg resonance waveguide [Opt. Lett. 27, 936 (2002)]. Using the...
Interview with Amnon Yariv (2003)
Interview in three sessions in November and December 1999 with Amnon Yariv, Martin and Eileen Summerfield Professor of Applied Physics and Electrical Engineering in the Division of Engineering and...
Choi, John M., Lee, Reginald K., Yariv, Amnon
We introduce a fiber ring optical resonator based on adiabatic fused-fiber grating couplers. The coupling of a through fiber to the resonator is controlled by the strength of the fiber Bragg...
Theoretical study on dispersion compensation in air-core Bragg fibers (2002)
Ouyang, George, Xu, Yong, Yariv, Amnon
In a previous paper we developed a matrix theory that applies to any cylindrically symmetric fiber surrounded by Bragg cladding. Using this formalism, along with Finite Difference Time Domain (FDTD)...
Asymptotic analysis of dielectric coaxial fibers (2002)
Xu, Yong, Lee, Reginald K., Yariv, Amnon
Using an asymptotic analysis, we analytically calculate the dispersion and the field distribution of guided modes in an all-dielectric coaxial fiber. We compare the analytical results with those...
Nonlinear dispersion in a coupled-resonator optical waveguide (2002)
Mookherjea, Shayan, Cohen, Donald S., Yariv, Amnon
The propagation of an optical pulse in a coupled-resonator optical waveguide may be calculated nonperturbatively to all orders of dispersion, in the conventional tight-binding approximation, even...
Coupled-wave formalism for optical waveguiding by transverse Bragg reflection (2002)
A formalism is presented for optical waveguiding by means of Bragg reflection. The theory provides analytic expressions for field modal profiles, dispersion, and attenuation. Waveguiding in line...
Coupled-wave formalism for optical waveguiding by transverse Bragg reflection (2002)
A formalism is presented for optical waveguiding by means of Bragg reflection. The theory provides analytic expressions for field modal profiles, dispersion, and attenuation. Waveguiding in line...
Coupled resonator optical waveguides (2002)
Mookherjea, Shayan, Yariv, Amnon
Properties of the recently introduced family of coupled resonator optical waveguides (CROWs) are reviewed, particularly with reference to CROWs designed as planar waveguides in two-dimensional...
Critical coupling and its control in optical waveguide-ring resonator systems (2002)
The coupling of optical waveguides to ring resonators holds the promise of a new generation of switches (modulators) which employ orders of magnitude smaller switching (modulation) voltages (or...
Asymptotic Matrix Theory of Bragg Fibers (2002)
Xu, Yong, Ouyang, George X., Lee, Reginald K., Yariv, Amnon
We developed a matrix theory that applies to any cylindrically symmetric fiber surrounded with Bragg cladding, which includes both the Bragg fibers and the recently proposed dielectric coaxial...
Kamath,G. Sanjiv, Yariv,Amnon, Hunsperger,R. G., Barnoski,Michael, Jensen,Steven
The objectives of this program were to study and analyze the propagation, attenuation, modulation, and detection of coherent optical waves in thin film waveguides, in particular, epitaxial...
Optimized Thin Film Light Sources. (2002)
Hunsperger,Robert G., Yariv,Amnon
The objective of this program was to develop and demonstrate techniques for efficiently coupling a semiconductor injection laser source to a hybrid optical integrated circuit. The specific design...
Passive (Self-Pumped) Phase Conjugate Mirror: Theoretical and Experimental Investigation, (2002)
Cronin-Golomb,Mark, Fischer,Baruch, White,Jeffrey O., Yariv,Amnon
Lindsey,C., Salzman,J., Vahala,K., Yariv,Amnon
A research program in semiconductor lasers and related phenomena resulted in new understanding relating to coherent single lobe laser arrays and to structures displaying near-diffraction-limited...
High Power Semiconductor Laser Sources. (2002)
Lang,R., Salzman,J., Yariv,Amnon
Unstable semiconductor lasers have been fabricated and their potential as high power laser sources has been analyzed. Keywords; Injection lasers; Surface emitting lasers; Unstable resonator...
Ouyang, George, Xu, Yong, Yariv, Amnon
Using an asymptotic formalism we developed in an earlier paper, we compare the dispersion properties of the air-core Bragg fiber with those of the coaxial Bragg fiber. In particular we are interested...
Algebraic and geometric space-time analogies in nonlinear optical pulse propagation (2001)
Mookherjea, Shayan, Yariv, Amnon
We extend recently developed algebraic space time analogies for the dispersive and nonlinear propagation of optical breathers. Geometrical arguments can explain the similarity of evolutionary...
Choi, John M., Lee, Reginald K., Yariv, Amnon
By controlling the internal loss of a ring resonator near critical coupling, we demonstrate control of the transmitted power in a fiber that is coupled to the resonator. We also demonstrate...
Hamiltonian dynamics of breathers with third-order dispersion (2001)
Mookherjea, Shayan, Yariv, Amnon
We present a nonperturbative analysis of certain dynamical aspects of breathers (dispersion-managed solitons) including the effects of third-order dispersion. The analysis highlights the similarities...
Optical pulse propagation in the tight-binding approximation (2001)
Mookherjea, Shayan, Yariv, Amnon
We formulate the equations describing pulse propagation in a one-dimensional optical structure described by the tight binding approximation, commonly used in solid-state physics to describe electrons...
Role of distributed Bragg reflection in photonic-crystal optical waveguides (2001)
Adibi, Ali, Xu, Yong, Lee, Reginald K., Lončar, Marko, Yariv, Amnon, Scherer, Axel
We show that the properties of the confined modes of a photonic band-gap (PBG) waveguide can be calculated with good accuracy by replacing it with an effective corrugated waveguide that represents...
Guiding mechanisms in dielectric-core photonic-crystal optical waveguides (2001)
Adibi, Ali, Xu, Yong, Lee, Reginald K., Yariv, Amnon, Scherer, Axel
We show that the main guiding mechanisms in dielectric-core photonic crystal optical waveguides are total internal reflection and distributed Bragg reflection. We also show that by placing a slab of...
Analysis of Optical Pulse Propagation with ABCD Matrices (2001)
Mookherjea, Shayan, Yariv, Amnon
We review and extend the analogies between Gaussian pulse propagation and Gaussian beam diffraction. In addition to the well-known parallels between pulse dispersion in optical fiber and CW beam...
Distortion correction by phase conjugation of nonparaxial vectorial beams: a general proof (2001)
Ciattoni, Alessandro, Di Porto, Paolo, Crosignani, Bruno, Yariv, Amnon
We present a general proof of the distortion-correction theorem, that is, of the possibility of correcting wave distortion by the technique of optical phase conjugation. The proof is valid for fully...
Asymptotic analysis of Bragg fibers (2000)
Xu, Yong, Yariv, Amnon, Lee, Reginald K.
Using an asymptotic analysis, we obtain an eigenvalue equation for the general mode dispersion in Bragg fibers. The asymptotic analysis is applied to calculate the dispersion relation and the field...
We study the evolution of optical signals in single-mode optical fibers in the presence of polarization-mode dispersion and polarization-dependent losses. Two geometric vectors on the Poincare sphere...
Properties of the slab modes in photonic crystal optical waveguides (2000)
Adibi, Ali, Xu, Yong, Lee, Reginald K., Yariv, Amnon, Scherer, Axel
We show that by placing a slab of semiconductor material between two photonic bandgap (PBG) mirrors, waveguide modes at frequencies out of the PBC; can he obtained. These modes are similar to the...
The author describes his career from leaving the Israeli Army in the summer of 1950 to date. He describes his work in optics during this time. He expresses his surprise by the wonderful and exciting...
Li, Yi, Eyal, Avishay, Yariv, Amnon
We develop a random-matrix formalism that enables analysis of a variety of polarization-mode dispersion (PMD) related problems. In particular, we address the problems of higher order error in a...
Modified spontaneous emission from a two-dimensional photonic bandgap crystal slab (2000)
Lee, Reginald K., Xu, Yong, Yariv, Amnon
A two-dimensional photonic crystal patterned into a thin dielectric slab waveguide is shown to alter drastically the lifetime of spontaneous emission as well as the radiation pattern. This means that...
This letter demonstrates the use of time-resolved optical-gating based on dispersive propagation to characterize a semiconductor mode-locked laser emitting picosecond pulses at a wavelength of 1.5...
Xu, Yong, Lee, Reginald K., Yariv, Amnon
We study adiabatic transformation in optical waveguides with discrete translational symmetry. We calculate the reflection and transmission coefficient for a structure consisting of a slab waveguide...
Ciattoni, Alessandro, Di Porto, Paolo, Crosignani, Bruno, Yariv, Amnon
The standard scalar paraxial parabolic (FockLeontovich) propagation equation is generalized to include all-order nonparaxial corrections in the significant case of a tensorial refractive-index...
Emission properties of a defect cavity in a two-dimensional photonic bandgap crystal slab (2000)
Lee, Reginald K., Painter, Oskar, Kitzke, Benjamin, Scherer, Axel, Yariv, Amnon
A single isolated defect within a two-dimensional photonic crystal semiconductor slab is shown to provide a lithographically tunable doubly degenerate emission resonance within the photonic bandgap,...
Xu, Yong, Lee, Reginald K., Yariv, Amnon
Using both the tight-binding approximation and the finite-difference time domain method, we analyze two types of coupled-resonator optical waveguide (CROW), a coupled-microdisks waveguide and a...
We introduce the technique of time-resolved optical gating (TROG) based on dispersive propagation (DP), a new noninterferometric method for characterizing ultrashort optical pulses in amplitude and...
We have derived an exact large-signal theory of propagation in a dispersive fiber of an optical wave with sinusoidal amplitude and frequency modulation. This has been applied to the study of...
Here we demonstrate theoretically that stimulated Brillouin scattering (SBS) can induce a phase shift of the optical carrier relative to its sidebands due to the waveguiding effect of the optical...
Coupled-resonator optical waveguide: a proposal and analysis (1999)
Yariv, Amnon, Xu, Yong, Lee, Reginald K., Scherer, Axel
We propose a new type of optical waveguide that consists of a sequence of coupled high- Q resonators. Unlike other types of optical waveguide, waveguiding in the coupled-resonator optical waveguide...
An analysis of multimode waveguides where several modes are coupled via quasiperiodic perturbations is presented. The supermodes (or eigenmodes) of the structure are derived and orthonormality...
Measurements of relative intensity noise and modulation response, before and after propagation in optical fiber, of the output field of multiquantum-well distributed-feedback (MQW-DFB) lasers are...
A new optical mode of propagation is described, which is the natural eigenmode (supermode) of a fiber (or any optical waveguide) with two cospatial periodic gratings. The mode frustrates the backward...
THEORY OF THE OPTICAL PARAMETRIC OSCILLATOR. (1998)
A formalism for describing optical parametric oscillation is developed. The theory is applied to deriving the oscillation threshold condition, power output, the Manley-Rowe conditions, index matching...
Gould,Roy W., Yariv,Amnon, Harp,Robert S.
Research under the Contract generally covered the following areas: Plasma wave resonances in spatially non-uniform plasmas; Cyclotron and upper hybrid echo phenomena in plasmas; Plasma wave echoes;...
Kamath,Sanjiv, Madden,Richard M., Marsh,Ogden J., Yariv,Amnon
Films of optical quality suitable for waveguide and optical device elements have been designed and growth processes developed for producing such films. Films with various compositions and thicknesses...
Components for Integrated Optics. (1998)
Recent progress in the fabrication of low attentuation optical fibers raises the attractive possibility of optical communications via these waveguides. Integration of different optical functions on...
Semiannual technical rept. no. 2, Jan-Jun 73, (1998)
Kamath,G. Sanjiv, Yariv,Amnon, Barnoski,Michael, Sakuda,Kyohei, Evtuhov,Victor
The objectives of this contract are to study and analyze the propagation, attenuation, and modulation of coherent optical waves in thin film waveguides, in particular epitaxial semiconductor...
Kamath,G. Sanjiv, Yariv,Amnon, Hunsperger,R. G., Barnoski,Michael, Sakuda,Kyohei
During this reporting period emphasis was placed mainly on improving growth techniques for epitaxial layers by the slide bar and the infinite melt methods. New slide bar assemblies made from...
Coherent Oscillation by Self-Induced Gratings in the Photorefractive Crystal BaTiO sub 3, (1998)
White,Jeffrey O., Cronin-Golomb,Mark, Fischer,Baruch, Yariv,Amnon
Amplifying Continuous Wave Phase Conjugate Mirror with Strontium Barium Niobate, (1998)
Fischer,Baruch, Cronin-Golomb,Mark, White,Jeffrey O., Yariv,Amnon, Neurgaonkar,Ratnakar
Real-Time Phase Conjugate Window for One-Way Optical Field Imaging through a Distortion, (1998)
Fischer,Baruch, Cronin-Golomb,Mark, White,Jeffrey O., Yariv,Amnon
Exact Solution of a Nonlinear Model of Four-Wave Mixing and Phase Conjugation, (1998)
Cronin-Golomb,Mark, White,Jeffrey O., Fischer,Baruch, Yariv,Amnon
Passive Phase Conjugate Mirror Based on Self-Induced Oscillation in an Optical Ring Cavity, (1998)
Cronin-Golomb,Mark, Fischer,Baruch, White,Jeffrey O., Yariv,Amnon
Optoelectronic Realizations of Neural Network Models. (1998)
Yariv, Amnon, Agranat, A., Neugebauer, C., Leyva, V.
This research project is aimed at developing silicon based implementations of neural network models. The main advantages of our approach are its use of standard, present day technology and its highly...
Growth, Characterization and Application of KTN Family Nonlinear Optical Crystals. (1998)
Yariv, Amnon, Kewitsch, Anthony, Hofmeister, Rudy
We have recently grown KLTN:(Cu, Ni, Ni/Ti) and SBT crystals and characterized their nonlinear-optical properties. The growth of these high quality crystals is a result of recent improvements in the...
Yariv, Amnon, Scherer, Axel, Green, William
Precise control of coupling between waveguides and resonant cavities enables the realization of several novel and improved devices, including low-power modulators, switches, filters, and wavelength...
Semiconductor Based Transverse Bragg Resonance (TBR) Optical Amplifiers and Laser (1998)
We have fabricated electrically pumped, semiconductor TBR lasers in the InP/InGaAsP material system to demonstrate the efficiency gains possible by the incorporation of a transverse Bragg grating. By...
Peral, Eva, Marshall, William K., Yariv, Amnon
Measurements of small-signal intensity modulation from direct-modulated distributed feedback (DFB) semiconductor lasers after propagation in dispersive fiber have previously been used to extract...
Modal reflectivity in finite-depth two-dimensional photonic-crystal microcavities (1998)
D'Urso, Brian, Painter, Oskar, O'Brien, John, Tombrello, Tom, Yariv, Amnon, Scherer, Axel
We present finite-difference time-domain calculations of the Q factor for an optical microcavity defined by a slab waveguide and two-dimensional photonic-crystal end mirrors. The effect of the finite...
Peral, Eva, Marshall, William K., Provenzano, Dan, Yariv, Amnon
An increase of the relative intensity noise of nearly single-mode distributed feedback lasers with respect to that predicted by single-mode theory after propagation in dispersive fiber at frequencies...
All-fiber zero-insertion-loss add-drop filter for wavelength-division multiplexing (1998)
Kewitsch, Anthony S., Rakuljic, George A., Willems, Phil A., Yariv, Amnon
We developed and fabricated an all-fiber add–drop filter by recording a Bragg grating in the waist of an asymmetric mode converter–coupler formed by adiabatic tapering and fusing of two locally...
Orlov, Sergei S., Yariv, Amnon, Van Essen, Scott
We present a coupled-mode theory of fiber-optic add drop filters, which involve directional coupling between two fibers combined with fiber Bragg gratings defined inside the coupling region. The...
Fixing of volume holograms in ferroelectric K1-y Liy Ta1-x Nbx O3 (1996)
Tong, Xiaolin, Hofmeister, Rudolf, Zhang, Min, Yariv, Amnon, Agranat, Aharon, Leyva, Victor
We report on the fixing of photorefractive volume holograms in potassium lithium tantalate niobate with ionic gratings and also with ferroelectric domain-reversed gratings. A diffraction efficiency...
Reconstruction of longitudinal distributed incoherent sources (1996)
We describe measurement of the degree of coherence induced by a random light source distributed along the longitudinal z axis. If this degree of coherence is measured only between all the in-plane...
Holographic storage dynamics in lithium niobate: theory and experiment (1996)
Yariv, Amnon, Orlov, Sergei S., Rakuljic, George A.
We present a theoretical model that describes holographic ionic fixing and storage dynamics in photorefractive crystals. Holographic gratings that are based on charge redistribution inevitably decay...
General theorem of spatial coherence: application to three-dimensional imaging (1996)
Three-dimensional imaging of incoherent light sources by the Michelson stellar interferometer is considered. When the interferometer’s pinholes are arranged properly, its output result is...
Average coherence approximation for partially coherent optical systems (1996)
Salik, Boaz, Rosen, Joseph, Yariv, Amnon
We introduce an approximation to the Hopkins integral for partially coherent optical systems. The average coherence approximation yields results close to the Hopkins integral for a wide range of...
Three-dimensional imaging of random radiation sources (1996)
A method to image random three-dimensional source distributions is proposed. We show that, by using a Michelson stellar interferometer in a prescribed fashion, one is able to measure a special form...
Supermodes of high-repetition-rate passively mode-locked semiconductor lasers (1996)
Salvatore, Randal A., Sanders, Steve, Schrans, Thomas, Yariv, Amnon
We present a steady-state analysis of high-repetition-rate passively mode-locked semiconductor lasers. The analysis includes effects of amplitude-to-phase coupling in both gain and absorber sections....
Monolithic integration of quantum well infrared photodetector and modulator (1996)
Almogy, Gilad, Xu, Yuanjian, Tong, Andrew, Shakouri, Ali, Yariv, Amnon
A modulation depth of 40% (0.7 dB/µm) was obtained with an infrared (10.6 µm) modulator consisting of a stack of 50 pairs of weakly coupled asymmetric quantum wells monolithically integrated with a...
Nonlinear self-phase matching of optical second harmonic generation in lithium niobate (1996)
Orlov, Sergei, Yariv, Amnon, Segev, Mordechai
We show that the nonlinear index perturbation due to light-induced photovoltaic space-charge field in LiNbO3 can give rise to self-phase matching of second harmonic generation. Increase of the...
Nonlinear optical properties of photoresists for projection lithography (1996)
Kewitsch, Anthony S., Yariv, Amnon
Optical beams are self-focused and self-trapped upon initiating crosslinking in photoresists. This nonlinear optical phenomenon is apparent only for low average optical intensities and produces index...
Self-focusing and self-trapping of optical beams upon photopolymerization (1996)
Kewitsch, Anthony S., Yariv, Amnon
We demonstrate theoretically and experimentally that optical beams are self-focused and self-trapped upon initiating photopolymerization. This unique nonlinear optical phenomenon is dependent on the...
Average Coherence Approximation for Partially Coherent Optical Systems (1996)
Boaz Salik, Joseph Rosen, Amnon Yariv
This paper is based on research supported in part by an Intel Foundation graduate research fellowship and by grants from the Advanced Research Projects Agency and the U. S. Air Force Office of...
Three-Dimensional Imaging of Random Radiation Sources (1996)
Joseph Rosen And, Joseph Rosen, Amnon Yariv
ons. In some cases---for example, in stellar observations--- the coherence can be measured only in the paraxial far zone in one essential direction. In what follows we propose a new method to deduce...
General Theorem of Spatial Coherence: (1996)
INTRODUCTION The Michelson stellar interferometer (MSI) (also known as long-baseline interferometer) is used for measuring the shape of planar objects that emit quasi-monochromatic, spatially...
Pseudo-nondiffracting beams generated by radial harmonic functions (1995)
Rosen, Joseph, Salik, Boaz, Yariv, Amnon
A Fourier hologram with the distribution of a radial harmonic function creates a nondiverging beam in the far field. The properties of this beam are analyzed and the beam is demonstrated. We also...
Snake beam: a paraxial arbitrary focal line (1995)
The creation of paraxial arbitrary focal lines by a Fourier computer-generated hologram is demonstrated. The desired focal line is represented by a series of connected straight line segments, each of...
Salvatore, Randal A., Yariv, Amnon
Knowledge and control of the chirp parameters of semiconductor lasers is a prerequisite to obtaining transform-limited pulses and/or to compensate for group velocity dispersion in fiber. Here, we...
Nondiffracting images under coherent illumination (1995)
Salik, Boaz, Rosen, Joseph, Yariv, Amnon
The focal depth of an arbitrary image is extended by optimization of the amplitude and phase distributions over the entire image. We propose a general method that takes advantage of a detector’s...
Optical and electrical Barkhausen noise induced by recording ferroelectric domain holograms (1995)
Kewitsch, Anthony S., Saito, Akira, Yariv, Amnon, Segev, Mordechai, Neurgaonkar, Ratnakar R.
Ferroelectric domain gratings with periods of the order of an optical wavelength are induced in strontium barium niobate by photorefractive space-charge fields. We measure the Barkhausen noise in...
One-dimensional beam shaping (1995)
Salik, Boaz, Rosen, Joseph, Yariv, Amnon
A general method is presented of optimizing one-dimensional holograms to realize an arbitrary diffracted field distribution over the propagation volume. A computationally simpler approach is...
Eliyahu, Danny, Salvatore, Randal A., Rosen, Joseph, Yariv, Amnon, Drolet, Jean-Jacques
We show that a reduction in the pulse distortion caused by chromatic dispersion can be achieved through pulse shaping. We argue that a simple binary phase mask in the Fourier plane of the laser...
Holographic fixing, readout, and storage dynamics in photorefractive materials (1995)
Yariv, Amnon, Orlov, Sergei, Rakuljic, George, Leyva, Victor
Holographic gratings in photorefractive crystals that are based on charge redistribution inevitably decay as a result of ionic and electronic conduction. Under certain and restricted conditions these...
Fixing of photorefractive volume holograms in K1-yLiyTa1-xO3 (1995)
Leyva, Victor, Engin, Doruk, Tong, Xiaolin, Tong, Min, Yariv, Amnon, Agranat, Aharon
We report the f ixing of photorefractive holographic gratings with high eff iciency in a sample of K1-yLiyTa1-xNbxO3 doped with Cu, V, and Ti. Holograms are thermally fixed through the screening of a...
Pulse characteristics of passively mode-locked diode lasers (1995)
Salvatore, Randal A., Schrans, Thomas, Yariv, Amnon
For the first time to our knowledge, asymmetric pulse shapes and the linear and nonlinear chirp from a passively mode-locked semiconductor laser are directly measured. For the laser tuned to various...
Pseudonondiffracting slitlike beam and its analogy to the pseudonondispersing pulse (1995)
Rosen, Joseph, Salik, Boaz, Yariv, Amnon, Liu, Hua-Kuang
A new nonspreading beam is proposed for the case in which diffraction occurs only in one transverse coordinate. The beam has the shape of a pulse in one dimension and is constant in the other...
Pseudonondiffracting slitlike beam and its analogy to the pseudo nondispersing pulse,” Opt (1995)
Joseph Rosen, Boaz Salik, Amnon Yariv, Hua-kuang Liu
A new nonspreading beam is proposed for the case in which diffraction occurs only in one transverse coordinate. The beam has the shape of a pulse in one dimension and is constant in the other...
Nondiffracting Images under Coherent Illumination (1995)
Boaz Salik, Joseph Rosen, Amnon Yariv
s and utilizing a detector's intensity response to yield arbitrary PND binary images. We begin by considering the image constraints imposed by the detector. A typical detector response curve 11...
Danny Eliyahu, Randal A. Salvatore, Al A. Salvatore, Joseph Rosen, Amnon Yariv, Jean-jacques Drolet
lity of pulses that do not disperse by virtue of their unique shaping was introduced. Based on the time -- space analogy Rosen et al. 9 proposed usT,0d-u Cs T,0d- 2ipb 2 f a 3 exp i Tt 0 b 2 f dt 0...
Pseudo-Nondiffracting Beams Generated By Radial Harmonic Functions (1995)
Joseph Rosen, Boaz Salik, Amnon Yariv
this paper we propose a new PNDB that is general in the sense that in the limit, when its parameters go to infinity, it converges to the Bessel beam. It consists of four independent parameters, each...
Snake Beam: A Paraxial Arbitrary Focal Line (1995)
yields a twisted curve of light, around the front focus, which we term a snake beam. Assume that a function gsx i , y i d is placed as a transparency distribution at the rear focal plane ( plane P i...
Second-harmonic generation in absorptive media (1994)
The solution of the coupled-wave equations for second-harmonic generation in a near-resonant three-level system is extended to include absorption. It is shown, within second-order perturbation...
Imaging of coherent fields through lenslike systems (1994)
I derive the imaging condition for the complex amplitude of a monochromatic field by a sequence of lenslike elements.
Light-induced absorption in photorefractive strontium barium niobate (1994)
Orlov, Sergei, Segev, Mordechai, Yariv, Amnon, Neurgaonkar, Ratnakar R.
Sr0.59Bao.41Nb2O6 and Sro.75Bao.25Nb2O6 exhibit an intensity-dependent absorption in the visible spectral range. We perform pump (green)-probe (red) measurements and find variation as high as 0.45...
Stability of photorefractive spatial solitons (1994)
Segev, Mordechai, Crosignani, Bruno, Di Porto, Paolo, Yariv, Amnon, Duree, Galen, Salamo, Gregory, ...
We present a theoretical analysis of the stability of photorefractive spatial solitons along with experimental results that show that the solitons are stable for small-scale perturbations but break...
Double phase conjugation (1994)
Engin, Doruk, Segev, Mordechai, Orlov, Sergei, Yariv, Amnon, Valley, George C.
We model the double phase-conjugate mirror (DPCM) as a function of time, the average direction of propagation of the two beams forming the DPCM, and one transverse coordinate. Calculations show that...
Intersubband-transition-induced phase matching (1994)
Almogy, Gilad, Segev, Mordechai, Yariv, Amnon
We suggest the use of the refractive-index changes associated with the intersubband transitions in quantum wells for phase matching in nonlinear materials. An improvement in the conversion efficiency...
Dimensionality and size of photorefractive spatial solitons (1994)
Duree, Galen, Salamo, Gregory, Segev, Mordechai, Yariv, Amnon, Crosignani, Bruno, Di Porto, Paolo, ...
We study experimentally self-trapping of optical beams in photorefractive media and show that the trapping is inherently asymmetric with respect to the two (transverse) trapping dimensions. We also...
Synthesis of an arbitrary axial field profile by computer-generated holograms (1994)
Computer-generated holograms are employed to design any desired intensity distribution along the propagation axis for a finite specified distance.
Conjugation fidelity and reflectivity in photorefractive double phase-conjugate mirrors (1994)
Orlov, Sergei, Segev, Mordechai, Yariv, Amnon, Valley, George C.
We present an experimental study of the behavior of photorefractive double phase-conjugate mirrors that illustrates recent theoretical predictions. We observe a sharp fidelity threshold that...
Spectral response of fixed photorefractive grating interference filters (1994)
Hofmeister, Rudolf, Yariv, Amnon, Yagi, Shogo
We report a theoretical investigation of the frequency response of optical interference filters written in photorefractive materials. Counterpropagating coherent beams interact in the volume of a...
Two-section gain-levered tunable distributed feedback laser with active tuning section (1994)
Griffel, Giora, Lang, Robert J., Yariv, Amnon
A composite cavity semiconductor laser structure that consists of two active (gain) sections is analyzed. One of the sections has a grating corrugation, while the other is flat. The operation of the...
Temporal evolution of photorefractive double phase-conjugate mirrors (1993)
Segev, Mordechai, Engin, Doruk, Yariv, Amnon, Valley, George C.
We present wave-optics calculations of the temporal and spatial evolution from random noise of a double phase-conjugate mirror in photorefractive media that show its image exchange and phase-reversal...
Rosen, Joseph, Segev, Mordechai, Yariv, Amnon, Barhen, Jacob
We suggest a method for coding high-resolution computer-generated volume holograms. It involves splitting the computer-generated hologram into multiple holograms, their individual recording as volume...
Selective page-addressable fixing of volume holograms in Sr0.75Ba0.25Nb2O6 crystals (1993)
Kewitsch, Anthony S., Segev, Mordechai, Yariv, Amnon, Neurgaonkar, Ratnakar
We demonstrate selective fixing of volume holograms in photorefractive media. Each holographic page may be fixed individually and overwritten without destroying the other fixed pages. We present...
Salvatore, Randal A., Schrans, Thomas, Yariv, Amnon
A wavelength-tunable passively-mode-locked semiconductor laser source of subpicosecond pulses is demonstrated. The system includes a two-section multiple-quantum-well laser which is coupled to an...
Temporal evolution of fanning in photorefractive materials (1993)
Segev, Mordechai, Engin, Doruk, Yariv, Amnon, Valley, George C.
We present detailed calculations of the temporal and spatial evolution of beam fanning in photorefractive crystals that is initiated by scattering from noise. We show that fanning starts from beam...
Increased photorefractive sensitivity in double-doped KTa1-xNbxO3:Fe,Ti (1993)
Leyva, Victor, Agranat, Aharon, Yariv, Amnon
Double-doped KTN:Fe,Ti exhibits increased photorefractive sensitivity compared with single-doped KTN:Fe and KTN:Ti. Absorption and photoconductivity measurements correlate the increase with an...
Wavelength-multiplexed computer-generated volume holography (1993)
Rosen, Joseph, Segev, Mordechai, Yariv, Amnon
We demonstrate recording and reconstruction of multiple-computer-generated wavelength-multiplexed volume holograms in a holographic storage medium. The holograms display high selectivity, and their...
Iannelli, John M., Shevy, Y., Kitching, J., Yariv, Amnon
The effects of a dispersive loss on the linewidth and chirp of a semiconductor laser are discussed. A van der Pol analysis is used to obtain expressions for linewidth reduction and chirp reduction in...
Interpage and interpixel cross talk in orthogonal (wavelength multiplexed) holograms (1993)
The problem of cross talk in image-bearing wavelength-multiplexed holograms was raised recently [A. Yariv, in Digest of Conference on Nonlinear Optics (Optical Society of America, Washington, D.C.,...
Electric-field multiplexing/demultiplexing of volume holograms in photorefractive media (1993)
Kewitsch, Anthony S., Segev, Mordechai, Yariv, Amnon, Neurgaonkar, Ratnakar R.
We propose a new method of volume hologram multiplexing/demultiplexing in noncentrosymmetric media. Volume holograms may be multiplexed by tuning the material parameters of the recording medium (such...
Simple methods of measuring the photorefractive phase shift and coupling constant (1993)
Hofmeister, Rudolf, Yariv, Amnon, Kewitsch, Anthony, Yagi, Shogo
We report measurements of the photorefractive phase shift and coupling constant of several photorefractive materials. We solve the problem of beam coupling and diffraction in a material with a...
Self-enhanced diffraction from fixed photorefractive gratings during coherent reconstruction (1993)
Segev, Mordechai, Kewitsch, Anthony, Yariv, Amnon, Rakuljic, George A.
We explore, theoretically and experimentally, the effects of self-enhancement (or self-depletion) of the diffraction which occurs during coherent reconstruction from fixed photorefractive gratings....
Self-trapping of optical beams in photorefractive media (1993)
Crosignani, Bruno, Segev, Mordechai, Engin, Doruk, Di Porto, Paolo, Yariv, Amnon, Salamo, Greg
We study the possibility of self-trapping of an optical beam in a photorefractive medium under the combined influence of diffraction and self-scattering (two-wave mixing) of its spatial frequency...
Optical data storage using orthogonal wavelength multiplexed volume holograms (1992)
Rakuljic, George A., Leyva, Victor, Yariv, Amnon
We propose a volume holographic data storage scheme that employs counterpropagating reference and image beams and wavelength multiplexing for page differentation. This method is compared with that...
Limitation on holographic storage in photorefractive waveguides (1992)
Segev, Mordechai, Yariv, Amnon, Shamir, Joseph
We show that photorefractive waveguide devices are subject to a limitation on their holographic storage capability owing to transversely nonuniform nonlinear losses to evanescent and radiation modes.
Yariv, Amnon, Blauvelt, Hank, Wu, Shu-Wu
A noise reduction scheme for long haul fiber amplitude modulation (AM) systems is proposed and analyzed. Such systems suffer from intensity noise which results from interference between the (twice)...
Zhao, Bin, Chen, T. R., Yariv, Amnon
The carrier distribution functions in a semiconductor crystal in the presence of a strong optical field are obtained. These are used to derive expressions for the gain dependence on the carrier...
Characterization of a new photorefractive material: Kl-yLyT1-xNx (1992)
Agranat, Aharon, Hofmeister, Rudy, Yariv, Amnon
We report the growth and characterization of a new photorefractive material, potassium lithium tantalate niobate (KLTN). A KLTN crystal doped with copper is demonstrated to yield high diffraction...
Schrans, Thomas, Sanders, Steve, Yariv, Amnon
Wavelength tunable CW (continuous-wave) passive mode-locking of a two-section quantum-well laser coupled to an external cavity is demonstrated. A tuning range of 26 nm is achieved with typical...
Optical interferometry between image-bearing beams and their redirected phase conjugates (1992)
Segev, Mordechai, Yariv, Amnon
We present three new interferometers, which are based on interference between combinations of image-bearing optical fields and their redirected phase-conjugate reflections in two- and...
Semiconductor laser with dispersive loss : Quantum noises and amplitude squeezing (1992)
Nabiev, Rashit, Popov, Yuri, Yariv, Amnon
We carried out the quantum mechanical treatment of the amplitude and phase noise characteristics of internal and output light of semiconductor laser with dispersive loss inside the resonator and...
Characterization of a New Photorefractive Material:K sub 1-y, L sub y, T sub 1-x, N sub x, (1992)
Agranat, Aharon, Hofmeister, Rudy, Leyva, Victor, Yariv, Amnon
We have demonstrated the growth of a new photorefractive material, KLTN, and have characterized its photorefractive properties. The crystal was of good quality with a phase transition at 178 (dot) K....
Spatial Solutions in Photorefractive Media, (1992)
Segev, Mordechal, Saa'r, Amir, Yariv, Amnon
Light solitons in space spatial soliton) have been under an intensive theoretical and experimental research in the last three decades. The solitons evolve from nonlinear changes in the refractive...
High Resolution Volume Holography using Orthogonal Data Storage, (1992)
Yariv, Amnon, Rakuljic, George, Leyva, Victor
Holographic volume data storage has long been an intriguing subject of research interest. The main reason for this interest is the promise of enormous data storage capacities. In a 1 sq.cm. volume,...
Semiconductor laser with dispersive loss : Quantum noises and amplitude squeezing (1992)
Nabiev, Rashit, Popov, Yuri, Yariv, Amnon
We carried out the quantum mechanical treatment of the amplitude and phase noise characteristics of internal and output light of semiconductor laser with dispersive loss inside the resonator and...
Semiconductor laser with dispersive loss : Quantum noises and amplitude squeezing (1992)
Nabiev, Rashit, Popov, Yuri, Yariv, Amnon
We carried out the quantum mechanical treatment of the amplitude and phase noise characteristics of internal and output light of semiconductor laser with dispersive loss inside the resonator and...
Phase conjugation involving incoherent counterpropagating beams in photorefractive media (1991)
Segev, Mordechai, Yariv, Amnon
We propose and analyze a new type of phase conjugation between counterpropagating beams in photorefractive materials based on diffraction from transmission gratings only. This effect does not require...
Fundamental media considerations for the propagation of phase-conjugate waves (1991)
Rigorous and approximate conditions that need to be satisfied by a propagation medium to enable phase conjugation to occur are derived. It is shown that, in spite of the fact that in general, losses...
Griffel, Giora, Marshall, William K., Gravé, Ilan, Yariv, Amnon
Frequency selectivity of a novel type of multielement, multisection laterally coupled semiconductor laser array is studied using the round-trip method. It is found that such a structure should lead...
Frequency response and tunability of grating-assisted directional couplers (1991)
The spectral properties of grating-assisted directional couplers are studied using an improved coupled mode formulation. Key parameters for the design of these structures, such as the grating period,...
Leyva, Victor, Agranat, Aharon, Yariv, Amnon
We report the fixing of a photorefractive grating in KTa1-xNbxO3 . The procedure involves the writing of a photorefractive grating in the cubic phase and the cooling of the sample under an applied...
Leyva, Victor, Agranat, Aharon, Yariv, Amnon
We report photorefractive, absorption, and photoconductivity measurements made on a KTa1-xNbxO3:CuY sample after a series of reduction and oxidation treatments. All relevant physical parameters that...
Interferometric electro-optical signal processors with partially coherent (1991)
Joseph Rosen, Mordechai Segev, Joseph Shamir, Amnon Yariv
illumination
Yariv, Amnon, Nabiev, Rashit, Vahala, Kerry
We show theoretically that the incorporation of a frequency-dependent loss mechanism in a semiconductor laser can lead, in concert with the amplitude-to-phase coupling, to major reductions of the...
Double-active-layer index-guided InGaAsP-InP laser diode (1990)
Kajanto, Markus, Chen, T. R., Zhuang, Y. H., Yariv, Amnon
A buried crescent InGaAsP-InP laser with two active layers was fabricated to study the temperature behavior of the double-carrier-confinement structure. An anomalously high characteristic temperature...
The detected signal-to-noise power ratio is evaluated for fiber links with periodic amplification. It is shown that the highest ratio is achieved in the limit of a distributed amplifier (g = α), but...
Sayano, Koichi, Yariv, Amnon, Neurgaonkar, Ratnakar R.
We present what is to our knowledge the first report on the photorefractive properties of Rh-doped Sr0.6Ba0.4Nb2O6 and experimental results showing a reduction of the photorefractive two-beam...
Voltage-controlled photorefractive effect in paraelectric KTa1-xNbxO3:Cu,V (1989)
Agranat, Aharon, Leyva, Victor, Yariv, Amnon
Experimental results that demonstrate the formation of photorefractive gratings in KTN:Cu,V in the paraelectric phase are presented. These gratings are formed using the quadratic electro-optic...
Tunable active chirped-corrugation waveguide filters (1989)
Schrans, Thomas, Mittelstein, Michael, Yariv, Amnon
A novel tunable semiconductor waveguide reflection filter is proposed and analyzed. The filter is based on spatially selective gain pumping of a chirped-corrugation waveguide. This active...
Photorefractive gain and response time of Cr-doped strontium barium niobate (1989)
Sayano, Koichi, Yariv, Amnon, Neurgaonkar, Ratnakar R.
We present experimental results on the photorefractive two-beam coupling constant and response time of two Cr-doped strontium barium niobate crystals with different dopant concentrations. Both showed...
Photorefractive dark conductivity in Cr-doped strontium barium niobate (1989)
Sayano, Koichi, Rakuljic, George A., Agranat, Aharon, Yariv, Amnon, Neurgaonkar, Ratnakar R.
We present the theoretical and experimental results of photorefractive two-beam coupling in Cr-doped strontium barium niobate:60, using thermal excitation (i.e., dark conductivity) to model the...
Hoenk, Michael E., Chen, Howard Z., Yariv, Amnon, Morkoç, Hadis, Vahala, Kerry J.
Cathodoluminescence scanning electron microscopy is used to study AlxGa1−x As epilayers grown on a nonplanar substrate by molecular beam epitaxy. Grooves parallel to the [011-bar] direction were...
Gain spectra of quantum wires with inhomogeneous broadening (1989)
Zarem, Hal, Vahala, Kerry, Yariv, Amnon
The effects of fabricational variations on the gain spectra of quantum wires are calculated within the limits of first-order perturbation theory. Gain spectra and density of states for 50-Å-radius...
Mittelstein, Michael, Mehuys, David, Yariv, Amnon, Ungar, Jeffrey E., Sarfaty, Rona
Quantum well lasers are shown to exhibit flattened broadband gain spectra at a particular pumping condition. The gain requirement for a grating-tuned external cavity configuration is examined and...
Tomita, Yasuo, Yahalom, Ram, Kyuma, Kazuo, Yariv, Amnon, Kwong, Norman Sze-Keung
We describe recent theoretical and experimental studies of polarization and spatial information recovery by modal dispersal and phase conjugation. We discuss the fidelity of this phase-conjugation...
Photorefractive properties of Ce- and Ca-doped Sr0.6Ba0.4Nb2O6 (1988)
Rakuljic, George A., Sayano, Koichi, Agranat, Aharon, Yariv, Amnon, Neurgaonkar, Ratnakar R.
We present the results of experimental study of the absorption coefficient, two-beam photorefractive coupling constant, and photorefractive response time of a doubly Ce- and Ca-doped Sr0.6Ba0.4Nb2O6....
Optical tracking filter using transient energy coupling (1988)
Kwong, Norman Sze-Keung, Tamita, Yasuo, Yariv, Amnon
Transient energy coupling between two coherent beams occurs in dynamic holographic media with local and noninstantaneous responses. The physical origin of the effect is described, and an optical...
Tomita, Yasuo, Yahalom, Ram, Yariv, Amnon
A general theory of polarization and spatial information recovery by modal dispersal and phase conjugation is presented by means of a coherency matrix formalism. The theory is applied to a system...
An exact formulation of coupled-mode theory for coupled-cavity lasers (1988)
Coupled-mode rate equations for coupled-cavity lasers are derived using a novel approach. The method, based on the Mittag-Leffler theorem, is exact. The coupling coefficients are compared to those...
Tomita, Yasuo, Yahalom, Ram, Yariv, Amnon
We report the investigation of polarization and spatial information recovery using a fiber-coupled phase-conjugate mirror. A marked dependence of the phase-conjugate output on the input-beam...
Demonstration of amplitude-distortion correction by modal dispersal and phase conjugation (1987)
Tomita, Yasuo, Kyuma, Kazuo, Yahalom, Ram, Yariv, Amnon
We demonstrate experimentally and explain theoretically polarization-preserving imaging through a lossy amplitude-distorting medium. This is accomplished by propagating the beam, before its arrival...
A self-consistent formalism is developed for treating propagation of beams in situations which include phase conjugation and nonreciprocal elements. Two equivalent field representations, the...
Self-stabilized Nonlinear Lateral Modes of Broad Area Lasers (1987)
Mehuys, David, Lang, Robert J., Mittelstein, Michael, Salzman, Joseph, Yariv, Amnon
The lateral modes of broad area lasers are investigated theoretically. The nonlinear interaction between optical field and effective refractive index leads to a saturable nonlinearity in the...
Semi-self-pumped phase-conjugate mirrors (1987)
Cronin-Golomb, Mark, Yariv, Amnon
We describe semi-self-pumped photorefractive phase-conjugate mirrors based on the unidirectional ring resonator and the double phase-conjugate mirror. Their applicability to thresholding phase...
Linear tailored gain broad area semiconductor lasers (1987)
Lindsey, Christopher P., Mehuys, David, Yariv, Amnon
Tailored gain semiconductor lasers capable of high-power operation with single-lobed, nearly diffraction limited beamwidths only a few degrees wide have been demonstrated in proton implanted chirped...
Chen, T. R., Utaka, Katsuyuki, Zhuang, Yuhua, Liu, Ya-Yun, Yariv, Amnon
A DH InGaAsP/InP mesa laser and a DH InGaAsP/InP mass-transport laser were successfully put together with an InGaAsP/InP heterojunction bipolar transistor in a vertical configuration. A laser...
Optical phase-conjugate correction for propagation distortion in nonreciprocal media (1987)
Kwong, Sze-Keung, Yahalom, Ram, Kyuma, Kazuo, Yariv, Amnon
We demonstrate experimentally that the effects of nonreciprocal elements or media that would otherwise spoil phase conjugation can be neutralized by using a tandem combination of a modal- and...
Laterally coupled-cavity semiconductor lasers (1987)
Lang, Robert J., Yariv, Amnon, Salzman, Joseph
We analyze the threshold behavior of a pair of laterally coupled semiconductor lasers of different lengths. The predictions include longitudinal mode selectivity leading to single longitudinal mode...
Coupling coefficients for coupled-cavity lasers (1987)
We derive simple, analytic formulas for the field coupling coefficients in a two-section coupled-cavity laser using a local field rate equation treatment. We show that there is a correction to the...
Vahala, Kerry, Arakawa, Yasuhiko, Yariv, Amnon
The field spectrum linewidth of a multiple quantum well laser immersed in a high magnetic field is measured at room temperature and at 165 K. The low-temperature measurements show a decrease of...
Self-starting passive phase conjugate mirror with Ce-doped strontium barium niobate (1987)
Rakuljic, George A., Sayano, Koichi, Yariv, Amnon, Neurgaonkar, Ratnakar R.
We report the use of Ce-doped SrxBa1−xNb2O6, x=0.60 and 0.75, as the holographic four-wave mixing medium in the construction of a self-starting passive phase conjugate mirror using internal...
Vahala, Kerry, Kyuma, Kazuo, Yariv, Amnon, Kwong, Sze-Keung, Cronin-Golomb, Mark, Lau, Kam Y.
We measure the spectral characteristics of an external cavity semiconductor laser which uses a phase conjugate mirror for its external reflection. This device has significant advantages over the...
Yariv, Amnon, Tomita, Yasuo, Kyuma, Kazuo
A theoretical model is proposed for explaining the recently observed modal dispersal of polarization information and its recovery in an experiment in which the coupling dispersing fiber.
Local-field rate equations for coupled optical resonators (1986)
We present a general formalism for obtaining a coupled set of first-order rate equations for the optical field at a finite number of points in an optical resonator. We compare these local-field...
Oscillation with photorefractive gain (1986)
Kwong, Sze-Keung, Cronin-Golomb, Mark, Yariv, Amnon
We review theories and experimental demonstrations of oscillation with photorefractive gain. The unidirectional ring resonator; the linear passive phase conjugate mirror, a phase conjugate resonator...
Cronin-Golomb, Mark, Yariv, Amnon
A GaAlAs semiconductor laser with feedback from a barium titanate photorefractive ring passive phase-conjugate mirror can be made to perform repeating or nonrepeating frequency scans over a 10-nm...
Bistable oscillations with a self-pumped phase-conjugate mirror (1986)
Kwong, Sze-Keung, Yariv, Amnon
Optical bistable oscillation beams with a self-pumped phase-conjugate mirror are reported. The results of an experimental demonstration are given, and an explanation based on the threshold of...
Intermodal stability of a coupled-cavity semiconductor laser (1986)
We present an analysis of the steady-state operation of a two-element coupled-cavity laser near a mode hop. The equations of motion for the two cavities and two relevant modes of a longitudinally...
Cronin-Golomb, Mark, Yariv, Amnon
We present a plane-wave theory of nondegenerate oscillation in the linear passive (self-pumped) phase-conjugate mirror (PPCM). The circumstances under which the plane-wave theory permits spontaneous...
Fischer, Baruch, White, Jeffrey O., Cronin-Golomb, Mark, Yariv, Amnon
We present an exact solution of a nonlinear vector analysis of two-beam coupling and forward four-wave mixing in photorefractive media.
Semiclassical theory of noise in multielement semiconductor lasers (1986)
We present a derivation of the noise spectra of multielement semiconductor lasers. We model the noise by a set of Langevin sources which drive a system of small-signal field equations. The Langevin...
Modal analysis of semiconductor lasers with nonplanar mirrors (1986)
Lang, Robert J., Salzman, Joseph, Yariv, Amnon
We present a formalism for analyzing laser resonators which possess nonplanar mirrors and lateral waveguiding [e.g., an unstable resonator semiconductor laser (URSL)]. The electric field is expanded...
Associative memories based on message-bearing optical modes in phase-conjugate resonators (1986)
Yariv, Amnon, Kwong, Sze-Keung
We describe in generic terms a class of associative memory that is based on (1) an oscillating message-bearing optical mode in a resonator containing a multimessage hologram, (2) image-selective...
Kwong, Sze-Keung, Rakuljic, George A., Yariv, Amnon
Real time "exclusive or" operation with an interferometer using a self-pumped phase conjugate mirror is reported. Also, results of image subtraction and intensity inversion are shown.
Phase of phase conjugation and its effect in the double phase-conjugate resonator (1986)
Kwong, Sze-Keung, Yariv, Amnon, Cronin-Golomb, Mark, Fischer, Baruch
Expressions for the phase of reflection from a photorefractive phase-conjugate mirror are obtained as a function of the intensity and phase of the pump and the probe beams. The phase is independent...
Yariv, Amnon, Lindsey, Chris, Sivan, Uri
A formalism is developed which results in simple analytic expressions for the electron energy splittings and the wave functions in coupled quantum well structures of the type employed in new laser...
Theory of gain, modulation response, and spectral linewidth in AlGaAs quantum well lasers (1985)
Arakawa, Yasuhiko, Yariv, Amnon
We investigate theoretically a number of important issues related to the performance of AlGaAs quantum well (QW) semiconductor lasers. These include a basic derivation of the laser gain, the...
Analysis of the dynamic response of multielement semiconductor lasers (1985)
We present a derivation of the dynamic response of a semiconductor laser consisting of more than one active element. We show that the amplitude and phase of the modulated cavity adiabatically follows...
Kwong, Sze-Keung, Yariv, Amnon, Cronin-Golomb, Mark, Ury, Israel
Frequency detuning effects in photorefractive oscillators are used in a new type of (passive) interferometry which converts optical path length changes to frequency shifts. Such an interferometer is...
Theory of laser oscillation in resonators with photorefractive gain (1985)
Yariv, Amnon, Kwong, Sze-Keung
A theory for oscillation in an optical resonator with photorefractive gain was formulated. The threshold conditions for the oscillation were also obtained. The result, applicable to a whole class of...
We develop a quantum mechanical formalism which facilitates the study of interactions locally in semiconductors. It is based on the operators ψ°(m,x→,k→,t) and ψ(m,x→,k→,t) which are...
Experimental studies of phase conjugation with depleted pumps in photorefractive media (1985)
Kwong, Sze-Keung, Chung, Young-Hoon, Cronin-Golomb, Mark, Yariv, Amnon
We describe the experimental measurement of phase-conjugate reflectivity versus various ratios of input-beam intensities in photorefractive barium titanate and strontium barium niobate crystals. The...
Vahala, Kerry, Paslaski, Joel, Yariv, Amnon
Simultaneous direct modulation response enhancement, phase noise (linewidth) reduction, and frequency modulation suppression are produced in a coupled-cavity semiconductor laser by the detuned...
Lang, Robert J., Vahala, Kerry J., Yariv, Amnon
The spatially dependent equations of motion for a single-mode semiconductor laser including Langevin source terms are derived and solved. The relative intensity, frequency, and field fluctuation...
High-speed InP optoelectronic switch with a tandem structure (1985)
Hori, Yoshikazu, Paslaski, Joel, Yi, Maobin, Yariv, Amnon
A tandem-structure InP-optoelectronic switch has been fabricated and studied. This optoelectronic switch is capable of generating short electrical pulses, as well as varying the duration of...
Optical bistability and hysteresis with a photorefractive self-pumped phase conjugate mirror (1984)
Kwong, Sze-Keung, Cronin-Golomb, Mark, Yariv, Amnon
Bistability and hysteresis have been observed in a photorefractive passive phase conjugate mirror. A threshold basis for the effect is presented and the results of an experimental demonstration of...
Quantum noise and dynamics in quantum well and quantum wire lasers (1984)
Arakawa, Yasuhiko, Vahala, Kerry, Yariv, Amnon
We calculate the relaxation oscillation corner frequency fr and the linewidth enhancement factor alpha for both a quantum well and a quantum wire semiconductor laser. A comparison of the results to...
Degenerate four-wave mixing in the presence of nonuniform pump wave fronts (1984)
Crosignani, Bruno, Yariv, Amnon
We derive the set of coupled equations that describes the process of degenerate four-wave mixing in the presence of spatially nonuniform pump-beam wave fronts. We investigate the influence of phase...
Mutual phase locking of a coupled laser diode-Gunn diode pair (1984)
Izadpanah, S. H., Rav-Noy, Z., Mukai, S., Margalit, S., Yariv, Amnon
Mutual phase locking has been achieved through series connection of a semiconductor laser and a Gunn diode oscillator. Experimental results obtained demonstrate a mutual interaction between the two...
Detuned loading in coupled cavity semiconductor lasers — effect on quantum noise and dynamics (1984)
We derive the modulation and noise properties of a semiconductor laser consisting of an active cavity loaded by a passive cavity. The results indicate that under certain conditions the direct...
Katz, Joseph, Kapon, Eli, Margalit, S., Yariv, Amnon
Rate equations analysis of phase-locked semiconductor laser arrays has been carried out. It was found that for given (Laser) current densities, the photon density distribution in the array elements...
Multicolor passive (self-pumped) phase conjugation (1984)
Cronin-Golomb, Mark, Kwong, Sze-Keung, Yariv, Amnon
Passive phase conjugation of up to six lines (457, 476, 488, 496, 501, and 514 nm) of the all lines output of an argon ion laser is reported. Imaging characteristics and reflectivity measurements are...
Supermode analysis of phase-locked arrays of semiconductor lasers (1984)
Kapon, E., Katz, J., Yariv, Amnon
The optical characteristics of phase-locked semiconductor laser arrays are formulated in terms of the array supermodes, which are the eigenmodes of the composite-array waveguide, by using...
Theory and applications of four-wave mixing in photorefractive media (1984)
Cronin-Golomb, Mark, Fischer, Baruch, White, Jeffrey O., Yariv, Amnon
The development of a theory of four-wave mixing in photo-refractive crystals is described. This theory is solved in the undepleted pumps approximation with linear absorption and without using the...
Field and hot carrier enhanced leakage in InGaAsP/InP heterojunctions (1983)
Chiu, L. C., Yu, K. L., Margalit, S., Chen, T. R., Koren, U., Hasson, A., ...
A model calculation for the field and hot carrier enhanced electron leakage in InGaAsP/InP LED's and lasers is presented. The significant influence of the doping level in the P-InP confining layer on...
In this letter we consider the effect of fast thermal fluctuations of electronic state occupancy on the field spectrum of semiconductor lasers and derive for the first time an expression for the...
Passive phase conjugate mirror based on self-induced oscillation in an optical ring cavity (1983)
Cronin-Golomb, Mark, Fischer, Baruch, White, Jeffrey O., Yariv, Amnon
A passive phase conjugate mirror based on four-wave mixing in an optical ring cavity is described. Unlike previously demonstrated passive phase conjugate mirrors it generates only one of its pumping...
Semiclassical theory of noise in semiconductor lasers--Part I (1983)
A Van der Pol analysis of laser noise which includes the field intensity dependence of the refractive index is presented. The consequent amplitude phase coupling affects all laser spectra except the...
Semiclassical theory of noise in semiconductor lasers--Part II (1983)
A model of semiconductor laser noise is presented which includes the carrier density as a dynamical variable and the carrier density dependence of the refractive index. The Van der Pol laser noise...
On the high power limit of the laser linewidth (1983)
The quantum mechanical limit of the laser linewidth is shown to imply a residual constant linewidth rather than obey an inverse power dependence as is usually assumed.
Passive mode locking of buried heterostructure lasers with nonuniform current injection (1983)
Harder, Christoph, Smith, John S., Lau, Kam Y., Yariv, Amnon
In this letter we report on a novel method to passively mode lock a semiconductor laser. We present experimental results of GaAlAs buried heterostructure semiconductor laser with a split contact...
Mode stabilization mechanism of buried-waveguide lasers with lateral diffused junctions (1983)
Yu, K. L., Lau, Kam Y., Margalit, Shlomo, Koren, Uziel, Chen, T. R., Yariv, Amnon
The mode stabilization behavior of the buried active waveguide with lateral diffused junction is theoretically investigated. The study shows that for an active waveguide of width around 5 μm with a...
Measurement of the linewidth enhancement factor alpha of semiconductor lasers (1983)
Harder, Christoph, Vahala, Kerry, Yariv, Amnon
A theory of the amplitude and phase modulation characteristic of a single mode semiconductor laser is presented. In this model the amplitude modulation couples through the complex susceptibility of...
The formulation of phase conjugation via nondegenerate four-wave mixing in a homogeneously broadened resonant medium is generalized to include saturating pump waves. An ultrahigh-Q optical filter is...
On spontaneous emission into guided modes with curved wavefronts (1982)
Yariv, Amnon, Margalit, Shlomo
The problem of spontaneous emission into guided modes with curved wavefronts is examined quantum mechanically. A classical result due to Petermann, which shows an increased emission rate relative to...
Passive (self-pumped) phase conjugate mirror: Theoretical and experimental investigation (1982)
Cronin-Golomb, Mark, Fischer, Baruch, White, Jeffrey O., Yariv, Amnon
We report the results of a theoretical and experimental investigation of a passive (self-pumped) phase conjugate mirror. This device is based on real time holography in materials which allow a...
Recent developments in monolithic integration of InGaAsP/InP optoelectronic devices (1982)
Koren, Uziel, Margalit, Shlomo, Chen, T. R., Yu, K. L., Yariv, Amnon, Bar-Chaim, Nadav, ...
Monolithically integrated optoelectronic circuits combine optical devices such as light sources (injection lasers and light emitting diodes) and optical detectors with solid-state semiconductor...
Auger recombination in quantum-well InGaAsP heterostructure lasers (1982)
Interband nonradiative Auger recombination in quantum-well InGaAsP/InP heterostructure lasers has been calculated. It is found that the Auger rate is much reduced in the quasi two-dimensional...
Bistability and pulsations in semiconductor lasers with inhomogeneous current injection (1982)
Harder, Christoph, Lau, Kam Y., Yariv, Amnon
Bistability and pulsation at microwave frequencies are observed in CW GaAs semiconductor lasers with inhomogeneous current injection. Inhomogeneous current injection is achieved with a segmented...
Laser with dynamic holographic intracavity distortion correction capability (1982)
Cronin-Golomb, Mark, Fischer, Baruch, Nilsen, Joseph, White, Jeffrey O., Yariv, Amnon
We report here a novel laser resonator with the ability to correct for intracavity phase distortions. The optical cavity employs a passive (self-pumped) phase conjugate reflector to provide this...
Very high frequency GaAlAs laser field-effect transistor monolithic integrated circuit (1982)
Ury, Israel, Lau, Kam Y., Bar-Chaim, Nadav, Yariv, Amnon
A very low threshold GaAlAs buried heterostructure laser has been monolithically integrated with a recessed structure metal-semiconductor field-effect transistor on a semi-insulating substrate. At cw...
Real-time phase conjugate window for one-way optical field imaging through a distortion (1982)
Fischer, Baruch, Cronin-Golomb, Mark, White, Jeffrey O., Yariv, Amnon
We demonstrate one-way optical field imaging through a distorting medium using a four-wave mixing implementation of real-time holography. Information can be transmitted at an arbitrarily fast rate as...
Exact solution of a nonlinear model of four-wave mixing and phase conjugation (1982)
Cronin-Golomb, Mark, White, Jeffrey O., Fischer, Baruch, Yariv, Amnon
An exact solution of a nonlinear model of holographic four-wave mixing is derived. An expression for the reflectivity of a phase-conjugate mirror with depleted pumps is presented. We find that such a...
Interband Auger recombination in InGaAsP (1982)
Chiu, L. C., Chen, P. C., Yariv, Amnon
The interband Auger recombination lifetimes of two Auger processes have been calculated to correlate measured threshold current densities and carrier lifetimes for InGaAsP and InGaAsSb lasers. Good...
A theory of longitudinal modes in semiconductor lasers (1982)
A theory of longitudinal mode lasing spectrum of semiconductor lasers is developed which takes into account the nonuniform carrier and photon distributions and local gain spectrum shifts inside...
Effect of superluminescence on the modulation response of semiconductor lasers (1982)
The small-signal modulation response of semiconductor lasers with a very small mirror reflectivity is analyzed. Superluminescent effects inside the laser cavity provide yet another mechanism for...
One-way coherent imaging through a distorting medium using four-wave mixing (1982)
A proposal and an analysis are presented for imaging through a distorting medium using field multiplication by four-wave mixing.
A theoretical model of the linear electro-optic effect (1982)
Shih, Chun-Ching, Yariv, Amnon
A simple theoretical study of the linear electro-optic effect is presented. This semiclassical approach is based on the single-energy-gap model, the dielectric theory and the concepts of bond charge...
Coupled-mode analysis of light propagation in optically active crystals (1982)
Yariv, Amnon, Lotspeich, James F.
A new mathematical formalism, based on a coupled-mode approach, is presented to describe light propagation in birefringent optically active crystals. An arbitrary light wave in the medium is...
An introduction to theory and applications of quantum mechanics / Amnon Yariv (1982)
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Amplified reflection, transmission, and self-oscillation in real-time holography (1981)
Fischer, Baruch, Cronin-Golomb, Mark, White, Jeffrey O., Yariv, Amnon
A theory of phase conjugation in asymmetric materials that allow a phase shift between the grating and the light-interference pattern is developed. We find that when this phase is nonzero, maximum...
Nilsen, Joseph, Gluck, Natalie S., Yariv, Amnon
An ultrahigh-Q tunable optical filter with a FWHM bandwidth of 41 MHz is demonstrated. The filtering is produced by nondegenerate phase conjugation through four-wave mixing in atomic-sodium vapor....
Nondegenerate four-wave mixing in a Doppler-broadened resonant medium (1981)
Third-order susceptibilities are calculated for a Doppler-broadened two-level system. The dependence of four-wave mixing on the angle θ between the pump and signal fields is studied, and the...
The intrinsic electrical equivalent circuit of a laser diode (1981)
Katz, J., Margalit, S., Harder, C., Wilt, D., Yariv, Amnon
The basic electrical equivalent circuit of a laser diode is derived. The effects of spontaneous emission and self-pulsations are included. It is found that self-pulsations are represented by a...
Single-electron analysis of the space-charge effect in free-electron lasers (1980)
Shih, Chun-Ching, Yariv, Amnon
An exact treatment of the space-charge effect in the single-electron analysis of a free-electron laser is presented to calculate its small-signal gain. With the inclusion of the repulsive force...
Yariv, Amnon, Winsor, Harry V.
The possibility of detecting magnetic fields by a magnetostrictive straining of optical fibers is investigated. The effect of shot noise and the limiting sensitivity are considered.
Two-element free-electron lasers (1980)
Shih, Chun-Ching, Yariv, Amnon
The interaction between the electrons and the radiation in a free-electron laser leads to a shift and a spread of the electron velocity distribution. The electron dynamics of a two-element system are...
Compensation for phase distortions in nonlinear media by phase conjugation (1980)
Pepper, David M., Yariv, Amnon
We demonstrate theoretically that the distortion-correction property of phase-conjugate beams propagating in reverse through aberrating media is also operative when the indices of refraction of the...
Quantitative Calculation of Electro-Optic Coefficients of Diatomic Crystals (1980)
Shih, Chun-Ching, Yariv, Amnon
The bond-charge dielectric theory of Phillips and Van Vechten is applied to the calculation of the electro-optic tensor coefficients. The agreement of the theoretical predictions with experimental...
Coherence of a room-temperature CW GaAs/GaAlAs injection laser (1979)
Reisinger, Axel R., Lawley, K. L., Yariv, Amnon
The temporal coherence of a stripe-geometry double-heterojunction GaAs/GaAlAs laser operating CW at room temperature was determined. A heterodyne detection scheme was used involving the mixing of the...
AuYeung, John, Fekete, D., Pepper, David M., Yariv, Amnon
We present an analysis of resonator properties for a cavity bounded by a phase conjugate mirror, which is generated by a degenerate four-wave nonlinear optical interaction. Using a ray matrix...
Theory of cw Raman oscillation in optical fibers (1979)
A theory for Raman fiber laser oscillators is presented. The Stokes output and the residual pump power are shown to be calculable from a knowledge of the input pump power and the fiber...
Transient four-wave mixing and real time holography in atomic systems (1979)
The problem of transient four-wave mixing with noncoincident optical pulses is analyzed using the formalism of the time evolution and the density matrix operators. The results are relevant to...
Compensation for channel dispersion by nonlinear optical phase conjugation (1979)
Yariv, Amnon, Fekete, Dan, Pepper, David M.
It is proposed that the process of nonlinear optical phase conjugation can be utilized to compensate for channel dispersion and hence to correct for temporal pulse broadening. Specifically, a...
Continuous backward-wave generation by degenerate four-wave mixing in optical fibers (1979)
AuYeung, John, Fekete, Dan, Pepper, David M., Yariv, Amnon, Jain, R. K.
We report on the observation of cw backward-wave generation using degenerate four-wave mixing in a nonresonant medium. The interaction took place inside a 3-m-long CS2-filled 4-µm i.d. optical...
Yeh, Pochi, Yariv, Amnon, Marom, Emanuel
The possibility of using Bragg reflection in a cylindrical fiber to obtain lossless confined propagation in a core with a lower refractive index than that of the cladding medium is proposed and...
Q-switched ruby laser alloying of Ohmic contacts on gallium arsenide epilayers (1978)
Margalit, Shlomo, Fekete, Dan, Pepper, David M., Lee, Chien-Ping, Yariv, Amnon
Ohmic contacts of AuGe have been produced on GaAs epilayers by laser alloying. The contacts possess morphological and electrical properties which are superior to those formed by conventional alloying.
Pepper, David M., Fekete, Dan, Yariv, Amnon
We report on the observation of amplified reflection and optical parametric oscillation via degenerate four-wave mixing in a nonresonant medium. The process is mediated through the third-order...
Spatial convolution and correlation of optical fields via degenerate four-wave mixing (1978)
Pepper, David M., AuYeung, John, Fekete, Dan, Yariv, Amnon
A nonlinear optical technique is described that performs, essentially instantaneously, the functions of spatial correlation and convolution of spatially encoded waves. These real-time operations are...
Phase conjugate optics and real-time holography [invited paper] (1978)
Nonlinear optical mixing can be used to perform a variety of new optical functions, as well as real-time holography. The theory and some of the first experiments are described.
Image phase compensation and real-time holography by four-wave mixing in optical fibers (1978)
Yariv, Amnon, AuYeung, John, Fekete, Dan, Pepper, David M.
It is proposed that real-time holography can be performed inside multimode fibers (or optical waveguides) using four-wave optical mixing. Of particular interest is the generation of complex-conjugate...
Spontaneous and stimulated Raman scattering in long low loss fibers (1978)
This paper considers the problem of forward Raman scattering process in a single transverse mode fiber. Both pump wave depletion and spontaneous scattering are considered in the analysis. Analytic...
Optical surface waves in periodic layered media (1978)
Yeh, Pochi, Yariv, Amnon, Cho, A. Y.
A generalized analysis of wave propagation in periodic layered media is applied to the special case of optical surface waves. These waves, confined to the interface between a periodic layered medium...
The application of time evolution operators and Feynman diagrams to nonlinear optics (1977)
This paper develops a consistent formalism for describing nonlinear optical mixing and multiphoton processes of any arbitrary order. The theory uses the time-evolution operators of quantum mechanics,...
Amplified reflection, phase conjugation, and oscillation in degenerate four-wave mixing (1977)
Yariv, Amnon, Pepper, David M.
A number of new optical effects that result from degenerate four-wave mixing in transparent optical media are proposed and analyzed. The applications are relevant to time-reversed (phase-conjugated)...
Electromagnetic propagation in periodic stratified media. I. General theory (1977)
Yeh, Pochi, Yariv, Amnon, Hong, Chi-Shain
The propagation of electromagnetic radiation in periodically stratified media is considered. Media of finite, semi-infinite, and infinite extent are treated. A diagonalization of the unit cell...
Periodic structures for integrated optics (1977)
Yariv, Amnon, Nakamura, Michiharu
This paper deals with the theory and device applications of periodic thin-film waveguides. Topics treated include mode solutions, optical filters, distributed feedback lasers (DFB), distributed Bragg...
The theory of electromagnetic Bloch waves in periodic stratified media is applied to the problems of birefringence and group velocity in these media. The relevance of periodic media to phase matching...
Stark-induced three-wave mixing in molecular gases--Part I: Theory (1977)
Abrams, Richard L., Yariv, Amnon, Yeh, Poochi A.
Application of dc electric field to a gaseous system destroys the basic inversion symmetry and allows three-wave mixing processes to occur. A theoretical derivation of this effect under conditions of...
On transmission and recovery of three-dimensional image information in optical waveguides (1976)
The paper considers two questions. The first one is: Is it possible to transmit three-dimensional pictorial information through transparent glass (or other dielectric) fibers? We find that due to...
Three-dimensional pictorial transmission in optical fibers (1976)
Modal phase dispersion limits image transmission in optical fibers to distances too short to be of general interest. A technique based on nonlinear optical mixing is described for modal phase...
The nonlinear absorption of intense laser light is used to obtain information about the times required for spectral cross relaxation (T3) and collisional dephasing (T2) in organic-dye solutions. The...
Solid-state traveling-wave amplification in the collisionless regime (1974)
Gover, Avraham, Burrell, Keith H., Yariv, Amnon
Traveling-wave interaction between flowing plasma and electromagnetic wave supported by external slow wave structure is analyzed in the collisionless regime. The plasma is described with the...
Taylor, Henry F., Yariv, Amnon
Phenomena associated with the propagation and manipulation of light in thin-film dielectric waveguides are presently the object of considerable research effort, directed toward possible applications...
Expressions for the coupling coefficients characterizing Bragg x-ray scattering in single crystals are derived. These are used to obtain the threshold gain of a new type of x-ray distributed-feedback...
Frequency, intensity, and field fluctuations in laser oscillators (1974)
Yariv, Amnon, Caton, William M.
The basic differential equation governing laser noise is derived from classical and quantum mechanical considerations. Its linearized Van Der Pol form is used to derive the frequency, field, and...
Monolithic solid-state traveling-wave amplifier (1974)
A new monolithic structure for solid-state traveling-wave amplifiers is proposed, which promises efficient interaction between a drifting charge carrier stream and a slow electromagnetic wave...
THE ABSORPTION OF INTENSE LIGHT BY ORGANIC-DYE SOLUTIONS; DEPENDENCE OH OPTICAL POLARIZATION (1974)
Author Institution: Battelle Memorial Institute; California Institute of Technology, Battelle Memorial Institute
Coupled-mode theory for guided-wave optics (1973)
The problem of propagation and interaction of optical radiation in dielectric waveguides is cast in the coupled-mode formalism. This approach is useful for treating problems involving energy exchange...
Frequency response of intracavity laser coupling modulation (1973)
Yariv, Amnon, Nussmeier, Thomas A., Kiefer, James E.
A resonant energy coupling between the atomic system and the oscillating optical mode leads to severe output distortion in intracavity laser coupling modulation. This anomalous behavior, which places...
Traveling wave oscillations in the optical region: a theoretical examination (1973)
Yariv, Amnon, Armstrong, Desmond R.
The interaction of an electron beam with the optical field of a periodically perturbed dielectric thin-film waveguide is considered. When the electron velocity is nearly equal to that of one of the...
Phase-matchable nonlinear optical interactions in periodic thin films (1972)
A proposal for a new method of phase matching in nonlinear optical interactions is made. A periodic perturbation of the surface of a thin-film waveguide generates space harmonics with new propagation...
The time behavior and spectra of relaxation oscillations in a high-gain laser (1972)
Casperson, Lee W., Yariv, Amnon
It is found that under appropriate conditions the high-gain 3.51-μ xenon laser may exhibit relaxation oscillations in the frequency range of 1 to 10 MHz. Experimental investigations have been...
Spectral narrowing in high-gain lasers (1972)
Casperson, Lee W., Yariv, Amnon
The dependence of spectral narrowing in lasers on the line-broadening mechanism is investigated including the effects of saturation and distributed loss. It is found that in the unsaturated regime...
Gain and dispersion focusing in a high gain laser (1972)
Casperson, Lee W., Yariv, Amnon
The transverse modes of a laser resonator containing a medium with a strong radial gain profile differ greatly from the modes of a similar resonator containing a low gain medium. Focusing and...
Pulse Propagation in a High-Gain Medium (1971)
It is found that ultrashort pulses in a high-gain 3.51-μm xenon laser propagate through the amplifying medium at a velocity less than the vacuum speed of light by as much as a factor of 2.5. The...
Longitudinal modes in a high-gain laser (1970)
In lasers employing high-gain narrow-linewidth transitions the theory predicts major departures of the mode-splitting frequencies from their low-gain values as well as a new type of mode splitting....
Observation of propagation cutoff and its control in thin optical waveguides (1970)
Hall, David, Yariv, Amnon, Garmire, Elsa
The first observation of optical cutoff in thin-film waveguides is reported. The waveguides consist of thin (~10µ) epitaxial layers of high-resistivity GaAs deposited on lower-resistivity GaAs...
Electrical and optical characteristics of InAs junction lasers (1970)
Electrical and light emission characteristics of pulsed InAs p-n junction lasers, prepared by diffusing Zn into Sn-doped n-type crystals with a substrate concentration of 10^18 cm^-3, were studied at...
Electro-optic characteristics of CdTe at 3.39 and 10.6 µ (1969)
Kiefer, James E., Yariv, Amnon
The physical characteristics of high resistivity CdTe which are relevant to its use for electro-optic modulation have been investigated at 3.39 and 10.6 µ. The unclamped electro-optic characteristic...
Mode locking and ultrashort laser pulses by anisotropic molecular liquids (1968)
Laussade, Jean P., Yariv, Amnon
Spectral broadening by the nonlinear dielectric response of anisotropic molecules has been observed and explained by Bloembergen and Lallemand.(1) Any two frequencies, say ω1 and ω2, present in the...
The Gaussian mode in optical resonators with a radial gain profile (1968)
The dependence of the parameters of the Gaussian mode in laser resonators on the properties of the medium in the cavity is studied. Experimental verification of the theoretical results is presented....
Evidence foe superradiance in the recombination from CdTe (1968)
Van Atta, Lynette B., Picus, Gerald S., Yariv, Amnon
Linewidth narrowing attributed to superradiance has been observed in near bandgap radiation due to the recombination of impact ionized carriers in n-type CdTe at room temperature. The light emission...
Laser mode-locking with saturable absorbers (1967)
Garmire, Elsa M., Yariv, Amnon
In this paper we describe a mode-locked laser in terms of traveling pulses of light. We show that the energy absorbed by a saturable absorber is a minimum if the pulselength is a minimum, and that...
Interferometry and Laser Control with Solid Fabry-Perot Etalons (1966)
Peterson, Don G., Yariv, Amnon
The use and analysis of solid Fabry-Perot etalons for interferometry and laser control are discussed and supported with experimental data. Low angle scattering is found to be an important factor...
Parametric interactions of optical modes (1966)
A formalism for treating interactions between optical modes in the presence of time-varying parameters is developed. The problems of parametric oscillation, frequency conversion, and internal laser...
Internal Modulation in Multimode Laser Oscillators (1965)
Multimode laser oscillation in the presence of internal resonator modulation is discussed. Modulation of the dielectric constant (epsilon) is shown to lead to frequency modulation of the laser light...
Parametric frequency conversion of coherent light by the electro-optic effect in KDP (1964)
Peterson, Don G., Yariv, Amnon
We report an experiment in which interaction between an optical wave at frequency f0 and a microwave signal at fm was used to generate a coherent optical beam at f0 + fm. The interaction was provided...
Energy and Power Considerations in Injection and Optically Pumped Lasers (1963)
The topics of power and energy output from lasers are treated. Both three- and four-level lasers are considered in the pulsed and continuous modes of operation. The theoretical power and energy...
Super Radiant Narrowing in Fluorescence Radiation of Inverted Populations (1963)
The effect of resonance reabsorption of fluorescent radiation on the spectral distribution has been considered as early as 1913 by Laudenburg and Reivhe [1]. Schein [2] and Zemansky [3] recognized...
Dielectric-waveguide mode of light propagation in p-n junctions (1963)
The condition for coherent laser emission from forward-biased p-n junctions [1-3] can be written as [4] [equation 1]... In order for the reported values [1-3] of Ic/A to agree with Eq. (1), must must...
A new electron spin paramagnetic resonance spectrum in CaF2 doped with uranium is attributed to U4+. The spectrum possesses axial symmetry about the 〈111〉 directions and is describable by a spin...
Transition Probability due to Random Perturbations (1962)
The subject of transition probabilities induced by random perturbations is treated. The expression for average transition rates between two energy levels is derived for the general case when the...
Spontaneous Emission from an Inverted Spin System (1960)
This paper summarizes the results of calculations made in an attempt to explain the origin of the observed modulation effects in two-level maser experiments [1,2]. In a spontaneously oscillating spin...
Experimental Procedure for the Determination of Cavity Parameters (1959)
A new experimental procedure for the determination of cavity parameters is described. The procedure follows the basic steps described by Slater. In this method one measures the frequencies at which...
Thesis (Ph. D. in Electrical Engineering)--University of California, Berkeley, Jan. 1959.
Thesis (Ph. D. in Electrical Engineering)--University of California, Berkeley, Jan. 1959.
On the coupling coefficients in the "coupled-mode" theory (1958)
The "coupled-mode" theory has proved itself to be an important tool in the analysis of energy exchange phenomena between traveling waves. In its original form [1] it is capable of yielding important...
Design and analysis of a velocity analyzer for electron beams--[microform] /--by Amnon Yariv. (1956)
Thesis (M.S. in Electrical Engineering)--University of California, Berkeley, June 1956.
Design and analysis of a velocity analyzer for electron beams /--by Amnon Yariv. (1956)
Thesis (M.S. in Electrical Engineering)--University of California, Berkeley, June 1956.