Threshold Gain of a Grating-Assisted Co-directionally Coupled Twin-Guide Laser Diode, (9999)
Willems, J., Morthier, G., Baets, R.
Tunable lasers that cover a large wavelength range are important devices in wavelength division multiplexing applications. One promising structure is based on grating-assisted co-directional coupling...
non-linear photonic crystals (2008)
B. Maes, P. Bienstman, J. Danckaert, R. Baets
Semi-analytical model for spatial solitons in
Liquid Crystal Orientation on Patterns Etched in Silicon-on-Insulator (2008)
Liquid Crystals have many applications in photonics, but often the geometrical properties of the photonic structures give problems for controlling the alignment of the liquid crystal. We demonstrate...
Liquid Crystal Orientation on Patterns Etched in Silicon-on-Insulator (2008)
Liquid Crystals have many applications in photonics, but often the geometrical properties of the photonic structures give problems for controlling the alignment of the liquid crystal. We demonstrate...
MONA - merging optics and nanotechnologies: the nanophotonics technology roadmap (2008)
Fulbert, L, Baets, R, Scavennec, A, Fotheringham, U, Beccard, R, Simir Krastev, K, ...
Iodine enhanced focused-ion-beam etching of silicon for photonic applications (2007)
Schrauwen, J, Van Thourhout, D, Baets, R
Focused-ion-beam etching of silicon enables fast and versatile fabrication of micro- and nanophotonic devices. However, large optical losses due to crystal damage and ion implantation make the...
Transmission of pillar-based photonic crystal waveguides in InP technology (2007)
Kok, A, Geluk, E, Docter, B, Notzel, R, Smit, M, ...
Waveguides based on line defects in pillar photonic crystals have been fabricated in InP/InGaAsP/InP technology. Transmission measurements of different line defects are reported. The results can be...
Compact focusing grating couplers for silicon-on-insulator integrated circuits (2007)
Van Laere, F, Claes, T, Schrauwen, J, Scheerlinck, S, Bogaerts, W, Taillaert, D, ...
We report experimental results on compact and broadband focusing grating couplers, both in silicon-on-insulator (SOI) and gold on SOL An eight-fold length reduction of the coupling structure from...
Amplifying waveguide optical isolator with an integrated electromagnet (2007)
Van Parys, W, Van Thourhout, D, Baets, R, Dagens, B, Decobert, J, Le Gouezigou, O, ...
We have demonstrated an amplifying waveguide optical isolator with an integrated electromagnet. This provides a solution to the generally poor magnetic remanence of this type of isolator. The proof...
Debackere, P, Scheerlinck, S, Bienstman, P, Baets, R
We provide further details on the calculation method used in the paper "Surface plasmon interferometer in silicon-on-insulator: novel concept for an integrated biosensor" [Opt. Express 14, 7063-7072...
Low-loss, low-cross-talk crossings for silicon-on-insulator nanophotonic waveguides (2007)
Bogaerts, W, Dumon, P, Van Thourhout, D, Baets, R
We present compact crossings for silicon-on-insulator photonic wires. The waveguides are broadened using a 3 mu m parabolic taper in each arm. By locally applying a lower index contrast using a...
Brouckaert, J, Roelkens, G, Van Thourhout, D, Baets, R
We present measurement results of compact and efficient InAlAs-InGaAs metal-semiconductor-metal photodetectors integrated on silicon-on-insulator (SOI) waveguides. These thin-film devices are...
Silicon-on-insulator ultra-compact duplexer based on a diffractive grating structure (2007)
Roelkens, G, Van Thourhout, D, Baets, R
The use of a silicon-on-insulator diffractive grating structure is proposed to achieve ultra-compact duplexing operation. One-dimensional grating structures are proposed to spatially separate two...
Efficient, broadband and compact metal grating couplers for silicon-on-insulator waveguides (2007)
Scheerlinck, S, Schrauwen, J, Van Laere, F, Taillaert, D, Van Thourhout, D, Baets, R
Compact metal grating couplers for efficient and broadband coupling between optical fibers and silicon-on-insulator waveguides are proposed and demonstrated. Simulation results for silver, gold,...
III-V/Si photonics by die to wafer bonding (2007)
Roelkens, G, Van Campenhout, J, Brouckaert, J, Van Thourhout, D, Baets, R, Romeo, P, ...
Photonic integrated circuits offer the potential of realizing low-cost, compact optical functions. Silicon-on-insulator SDI is a promising material platform for this photonic integration, as one can...
Detection of nanomechanical motion by evanescent light wave coupling (2007)
De Vlaminck, I, Roels, J, Taillaert, D, Van Thourhout, D, Baets, R, Lagae, L, ...
The authors demonstrate a technique allowing sensitive nanomechanical motion detection based on the evanescent light wave coupling between two photonic nanowires. Any relative motion between the...
Roelkens, G, Van Thourhout, D, Baets, R
A high-efficiency waveguide-to-fiber grating coupler for silicon-on-insulator waveguides was designed. Perfectly vertical fiber coupling is achieved by using an asymmetric grating structure to...
Thermal characterization of electrically injected thin-film InGaAsP microdisk lasers on Si (2007)
Van Campenhout, J, Rojo-Romeo, P, Van Thourhout, D, Seassal, C, Regreny, P, Di Cioccio, L, ...
We have performed a numerical and experimental analysis of the thermal behavior of electrically injected microdisk lasers that are defined in an InGaAsP-based thin film bonded on top of a silicon...
Van Campenhout, J, Rojo-Romeo, P, Regreny, P, Seassal, C, Van Thourhout, D, Verstuyft, S, ...
A compact, electrically driven light source integrated on silicon is a key component for large-scale integration of electronic and photonic integrated circuits. Here we demonstrate electrically...
All-Optical flip-flop operation using a SOA and DFB laser diode optical feedback combination (2007)
D'Oosterlinck, W, Ohman, F, Buron, J, Sales, S, Pardo, A, Ortigosa-Blanch, A, ...
We report on the switching of an all-optical flip-flop consisting of a semiconductor optical amplifier (SOA) and a distributed feedback laser diode ( DFB), bidirectionally coupled to each other. Both...
Study of a magnetooptic contact for an amplifying waveguide optical isolator (2007)
Van Parys, W, Vanwolleghem, M, Van Thourhout, D, Baets, R, Lelarge, F, Thedrez, B, ...
We report on the development of an ohmic metal-semiconductor contact for application in an amplifying wavegulde optical isolator. It is the result of magnetooptic waveguide simulations combined with...
Focused-ion-beam fabrication of slanted grating couplers in silicon-on-insulator waveguides (2007)
Schrauwen, J, Van Laere, F, Van Thourhout, D, Baets, R
We have designed and fabricated an efficient grating coupler for coupling light between optical fibers and silicon-on-insulator waveguides. The coupler consists of 88-nm-wide slits, etched at an...
Brouckaert, J, Bogaerts, W, Dumon, P, Van Thourhout, D, Baets, R
We show that a nanophotonic silicon-on-insulator (SOI) platform offers many advantages for the implementation of planar concave grating (PCG) demultiplexers, as compared with other material systems....
Thin-film III-V photodetectors integrated on silicon-on-insulator photonic ICs (2007)
Brouckaert, J, Roelkens, G, Van Thourhout, D, Baets, R
We critically assess recent progress in the integration of near-infrared photodetectors onto nanophotonic silicon-on-insulator (SOI) waveguide circuits. Integration of thin-film InGaAs photodetectors...
Photonic-crystal surface-emitting laser near 1.55 mu m on gold-coated silicon wafer (2007)
Vecchi, G, Raineri, F, Sagnes, I, Lee, K, Guilet, S, Le Gratiet, L, ...
An InP/InGaAs-based photonic band-edge laser bonded on silicon operating near 1.55 mu m is presented. A gold reflector positioned below the slab containing the active layer reduces the optical losses...
Compact slanted grating couplers between optical fiber and InP-InGaAsP waveguides (2007)
Van Laere, F, Kotlyar, M, Taillaert, D, Van Thourhout, D, Krauss, T, Baets, R
We present theoretical and experimental results for compact slanted gratings for vertical coupling between single-mode fiber and InP-InGaAsP waveguides. The maximum calculated coupling efficiency is...
All-optical flip-flop based on an SOA/DFB-laser diode optical feedback scheme (2007)
D'Oosterlinck, W, Buron, J, Ohman, F, Morthier, G, Baets, R
We report on the dynamic all-optical flip-flop (AOFF) operation of an optical feedback scheme consisting of a semiconductor optical amplifier (SOA) and a distributed feedback laser diode (DFB-LD),...
Vecchi, G, Raineri, F, Sagnes, I, Lee, K, Guilet, S, Le Gratiet, L, ...
We report on reflection modulation results near 1.55 mu m in InP-based two-dimensional photonic crystals. The fabrication technology uses a polymeric bonding technique to integrate the InP thin-slab...
A polarization-diversity wavelength duplexer circuit in silicon-on-insulator photonic wires (2007)
Bogaerts, W, Taillaert, D, Dumon, P, Van Thourhout, D, Baets, R
We present a wavelength duplexer based on a compact arrayed waveguide grating (AWG) in silicon-on-insulator (SOI) photonic wire waveguides. Polarization insensitive operation is achieved through a...
Stabilisation and control of widely tunable MG-Y lasers with integrated photodetectors (2007)
Laroy, R, Morthier, G, Mullane, T, Todd, M, Baets, R
The control and stabilisation of a widely tunable modulated grating Y-branch (MG-Y) laser are discussed. A characterisation algorithm will be introduced, which produces for each standardised...
Design and optimization of a monolithically integratable InP-based optical waveguide isolator (2007)
Vanwolleghem, M, Gogol, P, Beauvillain, P, Van Parys, W, Baets, R
The optimization design of the layer structure for a novel type of a 1.3 mu m monolithically integrated InP-based optical waveguide isolator is presented. The concept of this component is based on...
Van Laere, F, Roelkens, G, Ayre, M, Schrauwen, J, Taillaert, D, Van Thourhout, D, ...
We present high-efficiency grating couplers for coupling between a single-mode fiber and nanophotonic waveguides, fabricated both in silicon-on-insulator (SOI) and InP membranes using...
Silicon nanophotonic wire structures fabricated by 193nm optical lithography (2007)
Selvaraja Shankar, K, Jaenen, P, Beckx, S, Bogaerts, W, Dumon, P, Van Thourhout, D, ...
We demonstrate the use of 193nm photolithography for fabricating nanophotonic waveguides on silicon-on-insulator (SOI) technology. We present Fabrication and measurement result on wire based photonic...
Low loss amorphous silicon photonic wire and ring resonator fabricated by CMOS process (2007)
Selvaraja Shankar, K, Sleeckx, E, Bogaerts, W, Schaekers, M, Dumon, P, Van Thourhout, D, ...
We report low loss amorphous photonic wire loss of 3.54dB/cm. We also report compact racetrack ring resonators with Q factor greater than 20,000. The photonic circuit is fabricated with standard CMOS...
Polycrystalline silicon as waveguide material for advanced photonic (2007)
Selvaraja Shankar, K, Schaekers, M, Bogaerts, W, Van Thourhout, D, Baets, R
We report single mode polycrystalline-silicon on insulator photonic wire fabricated in a CMOS fabrication facility. The optical quality and the material aspects of the polycrystalline-silicon for...
Deposited silicon-on-insulator material technology for photonic integrated circuitry (2007)
Selvaraja Shankar, K, Van Thourhout, D, Baets, R, Sleeckx, E, Schaekers, M
Transparent amplifying waveguide optical isolator (poster) (2007)
Van Parys, W, Van Thourhout, D, Baets, R, Dagens, B, Lagae, L
SOI photonic wire based components with compact and efficient fiber couplers (invited paper) (2007)
Baets, R, Bogaerts, W, Taillaert, D, Dumon, P, Van Thourhout, D
Silicon photonics (invited paper) (2007)
Baets, R, Dumon, P, Bogaerts, W, Roelkens, G, Van Campenhout, J, Taillaert, D, ...
Si based waveguide and surface plasmon sensors (invited paper) (2007)
Debackere, P, Taillaert, D, De Vos, K, Scheerlinck, S, Bienstman, P, Baets, R
Gold grating coupler for silicon-on-insulator waveguides with 34% coupling efficiency (2007)
Scheerlinck, S, Van Laere, F, Schrauwen, J, Taillaert, D, Van Thourhout, D, Baets, R
Progress in high index contrast integrated optics (2007)
Baets, R, Bienstman, P, Bogaerts, W, Brouckaert, J, Debackere, P, Dumon, P, ...
How complex can integrated optical circuits become? (2007)
Smit, M, Hill, M, Baets, R, Bente, E, Dorren, H, Karouta, F, ...
Amplifying waveguide optical isolator with integrated electromagnet (2007)
Van Parys, W, Van Thourhout, D, Baets, R, Dagens, B, Decobert, J, Le Gouezigou, O, ...
Silicon nanophotonics and its applications in sensing (2007)
Baets, R, Taillaert, D, Bogaerts, W, Dumon, P, De Vos, K, Debackere, P, ...
Efficient, broadband and compact metal grating couplers for silicon-on-insulator waveguides (2007)
Scheerlinck, S, Schrauwen, J, Taillaert, D, Van Thourhout, D, Baets, R
Heterogeous III-V/silicon photonics: bonding technology and integrated devices (2007)
Roelkens, G, Brouckaert, J, Van Campenhout, J, Van Thourhout, D, Baets, R
Silicon-on-insulator microring resonator for biosensing (2007)
De Vos, K, Bartolozzi, I, Schacht, E, Bienstman, P, Baets, R
Metal grating coupler for silicon-on-insulator (2007)
Scheerlinck, S, Schrauwen, J, Van Laere, F, Taillaert, D, Van Thourhout, D, Baets, R
1.25GHz repetition rate operation of a SOA-DFB laser diode based all-optical flip-flop (2007)
D'Oosterlinck, W, Perez Pardo, A, Ortigosa Blanch, A, Puerto, G, Sales, S, Morthier, G, ...
A platform for silicon-on-insulator nanophotonics on industrial CMOS tools (poster) (2007)
Bogaerts, W, Dumon, P, Fedeli, J, Tchelnokov, A, Van Thourhout, D, Selvaraja, S, ...
Mizutani, A, Ikeda, N, Watanabe, Y, Ozaki, N, Takata, Y, Kitagawa, Y, ...
Polarization diversity grating couplers in bonded InP-membranes (poster) (2007)
Van Laere, F, Stomeo, T, Taillaert, D, Van Thourhout, D, Krauss, T, Baets, R
Integrated nanomechanical motion detection by means of optical evanescent wave coupling (2007)
De Vlaminck, I, Roels, J, Taillaert, D, Van Thourhout, D, Lagae, L, Baets, R, ...
Planar concave grating demultiplexer with distributed bragg reflection facets (2007)
Brouckaert, J, Bogaerts, W, Dumon, P, Kumar Selvaraja, S, Roelkens, G, Van Thourhout, D, ...
Silicon nanophotonics in CMOS (2007)
Van Thourhout, D, Bogaerts, W, Brouckaert, J, Dumon, P, Roelkens, G, Scheerlinck, S, ...
A photonic interconnect layer on CMOS (invited paper) (2007)
Van Thourhout, D, Van Campenhout, J, Rojo-Romeo, P, Regreny, P, Seassal, C, BInetti, P, ...
Low loss amorphous silicon photonic wire and ring resonator fabricated by CMOS process (2007)
Kumar Selvaraja, S, Sleeckx, E, Bogaerts, W, Schaekers, M, Dumon, P, Van Thourhout, D, ...
III-V/silicon photonics for optical interconnects: bonding technology and integrated devices (2007)
Roelkens, G, Brouckaert, J, Van Campenhout, J, Van Thourhout, D, Baets, R
Silicon-on-insulator as a platform for biosensors (2007)
Debackere, P, De Vos, K, Scheerlinck, S, Bienstman, P, Baets, R
Analysis of linear and nonlinear photonic devices using eigenmode expension (invited paper) (2007)
Maes, B, Ibanescu, M, Soljacic, M, Joannopoulos, J, Bienstman, P, Baets, R
The simulation method known as eigenmode expansion proves to be a versatile approach for modeling microphotonic devices. Originally the tool was developed for high-contrast linear designs. However,...
State of the art modulator approaches for continuous time-of-flight range finding (2007)
Van Nieuwenhove, D, Grootjans, R, Jovanov, L, Roels, J, Pizurica, A, ...
Light extraction for a doubly resonant cavity organic LED : the RC2LED (2007)
Vandersteegen, P, Mladenovski, S, Van Elsbergen, V, Gartner, G, Bienstman, P, Neyts, K, ...
The RC2LED is a substrate emitting OLED which has three additional interference layers between the ITO electrode and the glass substrate. This creates two resonant optical cavities. The RC2LED has 2...
Baets, R, Dumon, P, Bogaerts, W, Roelkens, G, Van Campenhout, J, Taillaert, D, ...
Silicon photonics is rapidly gaining importance as a generic technology platform for a wide range of applications in telecom, datacom, interconnect and sensing. It allows to implement photonic...
Si based waveguide and surface plasmon sensors - art. no. 647719 (2007)
Debackere, P, Taillaert, D, De Vos, K, Scheerlinck, S, Bienstman, P, Baets, R
Silicon-on-Insulator (SOI) is a very interesting material system for highly integrated photonic circuits. The high refractive index contrast allows photonic waveguides and waveguide components with...
Vandersteegen, P, Ullan Nieto, A, Van Buggenhout, C, Verstuyft, S, Bienstman, P, Debackere, P, ...
We present simulation and experimental results to achieve increased light extraction of a substrate emitting OLED. We present a comparison between a grating surface on the OLED and an array of...
De Vos, K, Bartolozzi, I, Bienstman, P, Baets, R, Schacht, E
Label-free biosensors for protein detection try to overcome the stability and reliability problems of commercialized systems relying on the detection of labeled molecules. We propose a micron sized...
Taillaert, D, Van Paepegem, W, Vlekken, J, Baets, R
We present a novel type of optical strain gage. The strain gage consists of a thin polyimide foil with an integrated optical circuit. The strain sensing elements are optical microresonators. The...
De Vlaminck, I, Roels, J, Taillaert, D, Van Thourhout, D, Lagae, L, Baets, R, ...
A central problem in the development of mechanical devices and systems is accurate and fast motion sensing. We demonstrate an integrated and near-field optical displacement sensing technique based on...
UV-based nano imprint fabrication of gold grating couplers on silicon-on-insulator (2007)
Scheerlinck, S, Van Thourhout, D, Baets, R
Fiber-to-waveguide gold grating couplers are fabricated using UV-based Nano Imprint Lithography and lift-off on top of an unprocessed Silicon-on-Insulator chip. Over 22% efficiency and a 1 dB...
Ultra-compact optical filters in silicon-on-insulator and their applications (2007)
Bogaerts, W, Dumon, P, Brouckaert, J, De Vos, K, Taillaert, D, Van Thourhout, D, ...
We present ultra-compact wavelength filters in SOI photonic wires: Mach-Zehnder lattice filters and ring resonators, as well as demultiplexers such as AWGs, and planar concave gratings. We also...
Silicon-on-insulator grating duplexer for fiber-to-the-home transceivers (2007)
Roelkens, G, Van Thourhout, D, Baets, R
We present the design of an ultra-compact duplexing structure in the silicon-on-insulator material system based on a diffractive grating structure. This device has a 10 mu mx10 mu m footprint and...
Planar concave grating demultiplexer with distributed Bragg reflection facets (2007)
Brouckaert, J, Bogaerts, W, Dumon, P, Selvaraja, S, Roelkens, G, Van Thourhout, D, ...
We present measurement results of a 4-channel silicon-on-insulator grating demultiplexer fabricated in a CMOS-line. On-chip loss is reduced below 4.5dB over a broad wavelength range by replacing each...
Ultra-compact optical filters in silicon-on-insulator and their applications (invited paper) (2007)
Bogaerts, W, Dumon, P, Brouckaert, J, De Vos, K, Taillaert, D, Van Thourhout, D, ...
High efficiency Silicon-on-Insulator grating coupler based on a poly-Silicon overlay (2006)
Roelkens, G, Van Thourhout, D, Baets, R
A high efficiency broadband grating coupler for Silicon-On-Insulator waveguides was designed. The grating coupler is defined by locally adding a poly-Silicon layer on top of the existing waveguide...
Moser, T, Balmer, J, Delbeke, D, Muys, P, Verstuyft, S, Baets, R
We present experimental results on the intracavity generation of radially polarized light by incorporation of a polarization-selective mirror in a CO2-laser resonator. The selectivity is achieved...
Compact wavelength-selective functions in silicon-on-insulator photonic wires (2006)
Bogaerts, W, Dumon, P, Van Thourhout, D, Taillaert, D, Jaenen, P, Wouters, J, ...
We present a number of compact wavelength-selective elements implemented in silicon-on-insulator (SOI) photonic wires. These include arrayed waveguide gratings (AWGs), Mach-Zehnder lattice filters...
Switching through symmetry breaking in coupled nonlinear micro-cavities (2006)
Maes, B, Soljacic, M, Joannopoulos, J, Bienstman, P, Baets, R, Gorza, S, ...
We describe stable symmetry-breaking states in systems with two coupled nonlinear cavities, using coupled-mode theory and rigorous simulations. Above a threshold input level the symmetric state of...
Focused-ion-beam fabricated vertical fiber couplers on silicon-on-insulator waveguides (2006)
Schrauwen, J, Van Thourhout, D, Baets, R
Focused-ion-beam technology is a versatile micro- and nanostructuring tool, in which material is sputtered locally by a finely focused ion beam. But for photonic applications this process has the...
Photonic crystal and quantum dot technologies for all-optical switch and logic device (2006)
Asakawa, K, Sugimoto, Y, Watanabe, Y, Ozaki, N, Mizutani, A, Takata, Y, ...
Nano-photonic technologies of GaAs-based two-dimensional photonic crystal (2DPC) slab waveguides (WGs) and InAs-based quantum dots (QDs) are reviewed for a symmetrical Mach - Zehnder (SMZ) type,...
Roelkens, G, Van Thourhout, D, Baets, R, Notzel, R, Smit, M
Laser emission from an InP/InGaAsP thin film epitaxial layer bonded to a Silicon-on-Insulator waveguide circuit was observed. Adhesive bonding using divinyl-tetramethyldisiloxane-benzocyclobutene...
High speed logic gate using two-photon absorption in silicon waveguides (2006)
Liang, T, Nunes, L, Tsuchiya, M, Abedin, K, Miyazaki, T, Van Thourhout, D, ...
The switching speed of conventional silicon-based optical switching devices based on plasma dispersion effect is limited by the lifetime of free carriers which introduce either phase or absorption...
High speed logic gate using two-photon absorption in silicon waveguides (2006)
Nunes, L. R, Tsuchiya, M, Abedin, K. S, Miyazaki, T, Van Thourhout, D, ...
The switching speed of conventional silicon-based optical switching devices based on plasma dispersion effect is limited by the lifetime of free carriers which introduce either phase or absorption...
Debackere, P, Scheerlinck, S, Bienstman, P, Baets, R
We propose a novel configuration for a highly integrated and highly sensitive optical biosensor. The basic element of the sensor is a surface plasmon interferometer consisting of a thin layer of gold...
Grating couplers for coupling between optical fibers and nanophotonic waveguides (2006)
Taillaert, D, Van Laere, F, Ayre, M, Bogaerts, W, Van Thourhout, D, Bienstman, P, ...
Nanophotonic waveguides and components are promising for use in the large-scale integration of photonic circuits. Coupling light between nanophotonic waveguides and a single-mode fiber is an...
Linear and nonlinear nanophotonic devices based on silicon-on-insulator wire waveguides (2006)
Dumon, P, Priem, G, Nunes, L, Bogaerts, W, Van Thourhout, D, Bienstman, P, ...
We review the basic linear and nonlinear properties of silicon-on-insulator photonic wire waveguides and their application to nanophotonic circuits. We give an overview of the performance and issues...
D'Oosterlinck, W, Morthier, G, Baets, R, Erneux, T
We investigate the bistable response of a traveling-wave semiconductor optical amplifier (SOA) connected bidirectionally to a distributed feedback (DFB) laser diode. By contrast to dispersive DFB...
Adaptive spatial resolution: application to surface plasmon waveguide modes (2006)
Debackere, P, Bienstman, P, Baets, R
In order to simulate surface plasmon waveguide structures we have utilized and improved the adaptive spatial resolution technique and combined it with PML boundary conditions. Using this new...
Direct modulation of widely tunable twin-guide lasers (2006)
Laroy, R, Todt, R, Meyer, R, Amann, M, Morthier, G, Baets, R
The possibility to directly modulate widely tunable lasers up to several gigahertz is desirable in telecom applications. We discuss the dynamic properties of the recently proposed widely tunable...
Romeo, P, Van Campenhout, J, Regreny, P, Kazmierczak, A, Seassal, C, Letartre, X, ...
A new approach for an electrically driven microlaser based on a microdisk transferred onto Silicon is proposed. The structure is based on a quaternary InGaAsP p-i-n junction including three InAsP...
Compact and efficient fibre-to-waveguide grating couplers in InP-membrane (2006)
Van Laere, F, Ayre, M, Taillaert, D, Van Thourhout, D, Krauss, T, Baets, R
The design and fabrication of compact grating couplers in InP-membrane waveguides for coupling to standard singlemode fibre is presented. A wafer bonding technique is applied to achieve a high...
Impact of absorption mechanisms on Kerr-nonlinear resonator behavior (2006)
Priem, G, Bienstman, P, Morthier, G, Baets, R
The effect of both single-photon and two-photon absorption mechanisms on the Kerr-nonlinear behavior of resonant structures is investigated using a semianalytical, one-dimensional model. In...
Verspurten, S, Morthier, G, Baets, R
The behavior of two types of gain-clamped semiconductor optical amplifiers under small-signal optical modulation is analyzed both numerically and experimentally. The small-signal gain as well as the...
Van Parys, W, Moeyersoon, B, Van Thourhout, D, Baets, R, Vanwolleghem, M, Dagens, B, ...
The design, fabrication, and characterization of an amplifying transverse magnetic (TM)-mode optical waveguide isolator operating at a wavelength of 1300 nm are presented. The magneto-optical Kerr...
Dumon, P, Bogaerts, W, Van Thourhout, D, Taillaert, D, Baets, R, Wouters, J, ...
We demonstrate a compact, fiber-pigtailed, 4-by-4 wavelength router in Silicon-on-insulator photonic wires, fabricated using CMOS processing methods. The core is an AWG with a 250GHz channel spacing...
Using the complex Jacobi method to simulate Kerr non-linear photonic components (2006)
Vandersteegen, P, Maes, B, Bienstman, P, Baets, R
The iterative complex Jacobi technique has been extended to simulate the third order Kerr effect in wavelength scale dielectric structures. This method solves the Helmholtz equation in a discrete...
Gorza, S, Taillaert, D, Baets, R, Maes, B, Emplit, P, Haelterman, M
We fully characterize the stationary spatial-gap soliton through the measurement of the phase function of its nearly periodic transverse intensity distribution. The spatial-gap soliton is generated...
Dumon, P, Bogaerts, Walter; U0008825, Van Thourhout, D, Taillaert, D, Baets, R, Wouters, J, ...
We demonstrate a compact, fiber-pigtailed, 4-by-4 wavelength router in Silicon-on-insulator photonic wires, fabricated using CMOS processing methods. The core is an AWG with a 250GHz channel spacing...
All-optical high speed NOR gate based on two photon absorption in silicon wire waveguides (2006)
Liang, T, Nunes, L, Tsuchiya, M, Abedin, K, Miyazaki, T, Van Thourhout, D, ...
We demonstrate for the first time an all-optical logic NOR gate in submicron size silicon wire waveguides. High speed operation at equivalent 80Gbps data rate was achieved using pump induced...
Van Laere, F, Roelkens, G, Schrauwen, J, Taillaert, D, Dumon, P, Bogaerts, W, ...
We present effcient, compact and broadband grating couplers in Silicon-on-Insulator, for coupling between single mode fiber and nanophotonic waveguides. By adding a gold bottom mirror, the coupling...
A nanophotonic 4x4 wavelength router in silicon-on-insulator (2006)
Dumon, P, Bogaerts, W, Van Thourhout, D, Morthier, G, Baets, R
We demonstrate a 400x150µm2 Silicon-on-insulator 4x4 arrayed waveguide grating with 3.5dB insertion loss, fabricated with CMOS technology. The device was pigtailed and used as a wavelength router in...
11.4dB isolation on an amplifying AlGaInAs/InP optical waveguide isolator (2006)
Van Parys, W, Van Thourhout, D, Morthier, G, Baets, R, Dagens, B, Decobert, J, ...
11.4dB optical isolation combined with forward transparency is demonstrated on a TMmode amplifying AlGaInAs/InP optical waveguide isolator operating at 1300nm. Basis for this isolator configuration...
Improved ASR convergence for the simulation of surface plasmon waveguide modes (2006)
Debackere, P, Bienstman, P, Baets, R
In order to simulate surface plasmon waveguide structures we have utilized and improved the adaptive spatial resolution technique and combined it with PML boundary conditions.
Functional silicon wire waveguides (2006)
Van Thourhout, D, Bogaerts, W, Dumon, P, Roelkens, G, Van Campenhout, J, Baets, R
We will demonstrate recent progress in Silicon nanowire based devices such as AWG's and lattice filters and show their performance is rapidly reaching a level useful for practical applications. Next...
Simulations of Kerr based non linear optical components with the complex jacobi iteration (2006)
Vandersteegen, P, Bienstman, P, Baets, R, Dewandere, A, Haelterman, A
We present several non-linear structures simulated with the non-linear complex Jacobi iteration. This method numerically integrates the fields of the Helmholtz equation for points located on a grid....
Numerical investigation of a 2D-grating for light extraction of a bottom emitting OLED (2006)
Vandersteegen, P, Van Buggenhout, C, Bienstman, P, Baets, R
An important limiting factor for efficient white light emitting organic LEDs is the total internal reflection occurring at each interface. In a bottom emitting OLED light is trapped by reflection at...
High index-contrast silicon-on-insulator nanophotonics (2006)
Bienstman, P, Van Laere, F, Taillaert, D, Dumon, P, Bogaerts, W, De Vos, K, ...
We will present recent progress in several devices based on silicon-on-insulator nanophotonics using deep-UV lithography. We will report on high efficiency grating couplers, ultra-compact arrayed...
High index-contrast silicon-on-insulator nanophotonics (abstract) (2006)
Bienstman, P, Van Laere, F, Taillaert, D, Dumon, P, Bogaerts, W, De Vos, K, ...
TM-mode AlGaInAs/InP amplifying waveguide optical isolator with 12.7dB isolation (2006)
Van Parys, W, Van Thourhout, D, Baets, R, Dagens, B, Decobert, J, Le Gouezigou, O, ...
We present the development of a monolithically integratable optical isolator. The device is a semiconductor optical amplifier with magnetized ferromagnetic metal contact. 12.7dB isolation and optical...
Roelkens, G, Brouckaert, J, Taillaert, D, Dumon, P, Bogaerts, W, Nötzel, R, ...
We present the heterogeneous integration of InP/InGaAsP photodetectors onto ultracompact Silicon-on-Insulator (SOI) waveguide circuits using benzocyclobutene (BCB) die to wafer bonding. This...
Improved ASR convergence for the simulation of surface plasmon waveguide modes (2006)
Debackere, P, Bienstman, P, Baets, R
In order to simulate surface plasmon waveguide structures we have utilized and improved the adaptive spatial resolution technique and combined it with PML boundary conditions.
Optical bistability in a SOA/DFB-LD feedback scheme (2006)
D'oosterlinck, W, Morthier, G, Baets, R, Erneux, T
Optical bistability is investigated using a DFB laser diode connected with a SOA. Broadband operation and tunability of the domain of bistable responses is shown. The device can readily serve as an...
Compact and efficient fibre-to-waveguide grating couplers in InP-membrane (2006)
Van Laere, F, Ayre, M, Taillaert, D, Van Thourhout, D, Krauss, T, Baets, R
Miniaturization and integration are key drivers for future optical communication networks. Nanophotonic components are very interesting for ultra-dense photonic circuits, but the coupling with the...
Liquid crystal orientation on patterns etched in silicon-on-insulator (2006)
Liquid Crystals have many applications in photonics, but often the geometrical properties of the photonic structures give problems for controlling the alignment of the liquid crystal. We demonstrate...
Nonlinear effects in ultrasmall Silicon-On-Insulator ring resonators (2006)
Priem, G, Dumon, P, Bogaerts, W, Van Thourhout, D, Morthier, G, Baets, R
We investigate the significance of secondary effects caused by free carrier accumulation and subsequent heating on the nonlinear behaviour of ultrasmall Silicon-On-Insulator ring resonators....
Electrically injected InGaAsP microdisk lasers heterogeneously integrated on a Si-wafer (2006)
Van Campenhout, J, Rojo-Romeo, P, Van Thourhout, D, Seassal, C, Regreny, P, Di Cioccio, L, ...
We report on electrically pumped lasing in microdisk cavities etched in a thin InP-based membrane directly bonded on top of a silicon wafer. The microdisks were planarized by means of a...
Debackere, P, Scheerlinck, S, Bienstman, P, Baets, R
We propose a novel configuration for a highly integrated and highly sensitive optical biosensor. The basic element of our sensor is a surface plasmon interferometer consisting of a thin layer of gold...
Focused-ion-beam fabricated vertical fiber couplers on silicon-on insulator waveguides (2006)
Schrauwen, J, Van Thourhout, D, Baets, R
We fabricated grating couplers in silicon-oninsulator waveguides with focused-ion-beam. First devices were very lossy, but by using selective etchant and a hard mask we obtained efficiencies...
Roelkens, G, Brouckaert, J, Verstuyft, S, Schrauwen, J, Van Thourhout, D, Baets, R
InP/InGaAsP photodetectors and lasers were integrated on top of ultra-compact Silicon-on-Insulator waveguide circuits using Benzocyclobutene adhesive bonding. Light is coupled between III-V device...
Roelkens, G, Brouckaert, J, Verstuyft, S, Schrauwen, J, Van Thourhout, D, Baets, R
InP/InGaAsP photodetectors and lasers were integrated on top of ultra-compact Silicon-on-Insulator waveguide circuits using Benzocyclobutene adhesive bonding. Light is coupled between III-V device...
Modeling methods for high-index contrast linear and non-linear nanophotonics (invited paper) (2006)
Bienstman, P, Vandersteegen, P, Maes, B, Baets, R
We present several modeling mehods for the study of nanophotonic devices: a non-linear eigenmode expansion method and a non-linear complex Jacobi method and a non-linear complex Jacobi method to...
Near-field characterization of coupled-cavity waveguides on SOI (2006)
Neel, D, Benyattou, T, Sanchis, P, Marti, J, Bogaerts, W, Dumon, P, ...
An adiabatic taper is proposed to couple light from a photonic crystal waveguide to a coupled-cavity waveguide. A Scanning Near-Field Optical Microscopy study is realized on these structures. This...
Asakawa, K, Sugimoto, Y, Watanabe, Y, Ozaki, N, Mizutani, A, Takata, Y, ...
Nano-photonic technologies of GaAs-based two-dimensional photonic crystal (2DPC) slab waveguides and InAs-based quantum dots (QDs) are reviewed for a symmetric Mach-Zehnder type, ultra-small and...
Van Laere, F, Ayre, M, Taillaert, D, Van Thourhout, D, Krauss, T, Baets, R
We present compact and highly efficient grating couplers in bonded InP-membranes for coupling between single-mode optical fiber and nanophotonic waveguides. We have measured 56% coupling efficiency...
Nonlinear self-distortion of picosecond optical pulses in silicon wire waveguides (2006)
Liang, T, Nunes, L, Tsuchiya, M, Abedin, K, Miyazaki, T, Van Thourhout, D, ...
We experimentally observed the self-distortion of picosecond pulses propagating in silicon wire waveguides. The asymmetry of output pulse shape was due to two-photon absorption generated free...
Baets, R, Smit, M, Vanholme, L
ePIXnet is a Network of Excellence with a focus on photonic integrated circuits. Its objective is to serve the academic and industrial research community by building a world-class research...
2D parallel optical interconnects between CMOS Ics (invited paper) (2006)
Rits, O, De Wilde, M, Roelkens, G, Bockstaele, R, Annen, R, Bossard, M, ...
The CMOS IC industry thrives on the down-scaling drive for ever smaller transistors, leading to faster, smaller and more complex digital systems. These ICs are interconnected by electrical tracks...
A WDM optical backplane with AWG based passive routing (2006)
Kyriakis-Bitzaros, E, Grivas, E, Halkias, G, Katsafouros, S, Dumon, P, Morthier, G, ...
An optical backplane based on Wavelength Division Multiplexing (WDM) is introduced. It is a tunable transmitter fixed receiver (TT-FR) architecture, which incorporates an NxN Arrayed Waveguide...
InP on silicon electrically based driven microdisk lasers for photonic Ics (2006)
Rojo Romeo, P, Van Campenhout, J, Regreny, P, Mandorlo, F, Seassal, C, Letartre, X, ...
An electrically driven microlaser based on a thin InP based microdisk transferred onto silicon is proposed. The technological procedure is described and first experimental results, showing a laser...
Silicon nanophotonics using deep-UV lithography (invited paper) (2006)
Bienstman, P, Dumon, P, Bogaerts, W, Taillaert, D, Van Laere, F, De Vos, K, ...
We will present recent progress in several devices based on silicon-on-insulator nanophotonics using deep-UV lithography. We will report on high efficiency grating couplers, ultra-compact arrayed...
D'oosterlinck, W, Morthier, G, Baets, R, Erneux, T
All-Optical flip-flop operation using a SOA and DFB laser diode in an optical feedback scheme is presented. The device is based on the gain difference in the SOA and DFB laser diode for the different...
Magneto-optic contact for application in an amplifying waveguide optical isolator (2006)
Van Parys, W, Van Thourhout, D, Baets, R, Vanwolleghem, M, Thedrez, B, Lelarge, F, ...
We present the development of a metal-semiconductor contact for a TM-mode amplifying waveguide optical isolator and show that it is a compromise between good (magneto-)optical performance and good...
Planar concave grating demultiplexer on a nanophotonic silicon-on-insulator platform (2006)
Brouckaert, J, Bogaerts, W, Dumon, P, Schrauwen, J, Van Thourhout, D, Baets, R
We present measurement results of a 4- channel silicon-on-insulator grating demultiplexer fabricated in a CMOS line. It has an ultra-small footprint of 280x150µm2, 20nm channel spacing, on-chip loss...
Increasing light extraction of a substrate emitting OLED using a 2D surface grating (2006)
Vandersteegen, P, Van Buggenhout, C, Ullan Nieto, A, Verstuyft, S, Bienstman, P, Neyts, K, ...
We present simulation and experimental results to achieve increased light extraction of a substrate emitting OLED. A 2D grating located at the glass-air interface experimentally gives a relative...
Planar focusing lens grating for vertical coupling on 2D photonic crystal slab waveguide (2006)
Mizutani, A, Ikeda, N, Watanabe, Y, Ozaki., N, Takata, Y, Kitagawa, Y, ...
Planar focusing lens gratings are investigated in order to realize an efficient coupling from an optical fiber to a two-dimensional photonic crystal slab waveguide. The optimal gratings exhibit the...
Roelkens, G, Brouckaert, J, Van Thourhout, D, Baets, R, Notzel, R, Smit, M
The process of bonding InP/InGaAsP dies to a processed silicon-on-insulator wafer using sub-300 nm layers of DVS-bis-benzocyclobutene (BCB) was developed. The planarization properties of these...
Silicon-on-insulator microring for label-free biosensing (poster) (2006)
De Vos, K, Bartolozzi, I, Dumon, P, Scheerlinck, S, Bogaerts, W, Taillaert, D, ...
The MONA project: the nanophotonics roadmap (invited paper) (2006)
Baets, R, Beccard, R, Fulbert, L, Holtmanspotter, D, Krastev, K, Mounier, E, ...
The goal of the MONA project (Merging Optics and Nanotechnologies) is to leverage synergies in pthotonics and nanotechnologies, seeking to increase the impact and efficiency of investment in European...
Neel, D, Benyattou, T, Sanchiz, P, Marti, J, Bogaerts, W, Dumon, P, ...
Silicon-on-insulator based nanophotonics: why, how, what for ? (presentation) (2006)
Baets, R, Bogaerts, W, Dumon, P, Taillaert, D, Van Thourhout, D, Kumar Selvaraja, S, ...
Adhesive bonding of III-V dies to processed SOI using BCB photonic applications (2006)
Roelkens, G, Brouckaert, J, Van Thourhout, D, Baets, R
The bonding process of InP/InGaAsp dies to processed SOI using DVS-bis-BenzoCycloButene was developed. Surface preparation and the degree of planarization of bonding layers thinner than 300 nm were...
A nanophotonic NEMS-modulator in silicon-on-insulator (abstract) (2006)
Roels, J, De Vlaminck, I, Van Thourhout, D, Lagae, L, Taillaert, D, Baets, R
Electrically injected thin-film InGaAsP microdisk lasers integrated on a Si-wafer (2006)
Van Campenhout, J, Rojo-Romeo, P, Van Thourhout, D, Seassal, C, Regreny, P, Di Cioccio, L, ...
We report on electrically pumped lasing in a microdisk cavity defined in an InGaAsP-based thin film bonded on top of a silicon wafer. The top metal contact is placed in the centre of the disk,...
A nanophotonic NEMS-modulator in silicon-on-insulator (2006)
Roels, J, De Vlaminck, I, Van Thourhout, D, Lagae, L, Taillaert, D, Baets, R
In order to achieve fast all optical switching in communication networks, a compact, low cost, integrated optical switch is needed. Nanophotonic integrated circuits in silicon-on-insulator...
A biosensor based on surface plasmon interference (2006)
Debackere, P, Scheerlinck, S, Bienstman, P, Baets, R
We propose a new concept for surface plasmon sensing using a surface plasmon interferometer. The high field enhancement of surface plasmons near the metallic interface makes them ideal for use in...
Thin film InGaAs MSM photodetectors integrated onto silicon-on-insulator waveguide circuits (2006)
Brouckaert, J, Roelkens, G, Van Thourhout, D, Baets, R
Silicon-on-Insulator (SOI) is rapidly emerging as a versatile platform for a variety of integrated nanophotonic components. High density waveguide circuits can be fabricated using standard CMOS...
De Vos, K, Bartolozzi, I, Bienstman, P, Baets, R, Schacht , E
Optical label-free biosensors to detect biomolecular interaction attempt to overcome the drawbacks of commercialized systems relying on the detection of labeled biomolecules. We propose an integrated...
Focused-ion-beam fabrication of slanted fiber couplers in silicon-on-insulator waveguides (2006)
Schrauwen, J, Van Laere, F, Van Thourhout, D, Baets, R
The ability for forming complex three dimensional shapes is one of the prime advantages of focused ion beam based micromachining. We have used this technique to fabricate slanted fiber couplers in...
Integration of InP/InGaAsP photodetectors onto silicon-on-insulator waveguide circuits (2005)
Brouckaert, J, Taillaert, D, Dumon, P, Van Thourhout, D, ...
The integration of optical functionalities on a chip has been a long standing goal in the optical community. Given the call for more integration, Silicon-on-Insulator (SOI) is a material system of...
Efficient silicon-on-insulator fiber coupler fabricated using 248-nm-deep UV lithography (2005)
Dumon, P, Van Thourhout, D, Baets, R
We present a silicon-on-insulator (SOI) waveguide to fiber coupler fabricated using 248-nm-deep ultraviolet lithography. The loss of the taper structure is around 1 dB while the coupling loss from a...
Semianalytic approach for analyzing coupling issues in photonic crystal structures (2005)
Sanchis, P, Marti, J, Bienstman, P, Baets, R
A semianalytic approach based on previously derived closed-form expressions for the transmission and reflection matrices between a dielectric waveguide and a semi-infinite photonic crystal (PhC)...
Priem, G, Dumon, P, Bogaerts, W, Van Thourhout, D, Morthier, G, Baets, R
We demonstrate optical bistability in a Silicon-On-Insulator two-bus ring resonator with input powers as low as 0.3mW. We evaluate the importance of the different nonlinear contributions and derive...
Roelkens, G, Van Thourhout, D, Baets, R
We present and numerically analyze two schemes for efficient, large-bandwidth, and fabrication-tolerant optical coupling of bonded III-V membrane active components to an underlying nanophotonic...
Optical bistability and pulsating behaviour in Silicon-On-Insulator ring resonator structures (2005)
Dumon, P, Van Thourhout, D, Morthier, G, Baets, R
We demonstrate optical bistability in a Silicon-On-Insulator two-bus ring resonator with input powers as low as 0.3mW. We evaluate the importance of the different nonlinear contributions and derive...
Moeyersoon, B, Morthier, G, Bockstaele, R, Baets, R
We show that the wavelength switching behavior of semiconductor tunable lasers can be improved through optical feedback from a stable reference filter. The filter is based on a novel prism-based...
Ultrafast all-optical switching by cross-absorption modulation in silicon wire waveguides (2005)
Liang, T, Nunes, L, Sakamoto, T, Sasagawa, K, Kawanishi, T, Tsuchiya, M, ...
We describe the use of two-photon absorption in submicron silicon wire waveguides for all-optical switching by cross-absorption modulation. Optical pulses of 3.2 ps were successfully converted from...
Efficient nonadiabatic planar waveguide tapers (2005)
Luyssaert, B, Bienstman, P, Vandersteegen, P, Dumon, P, Baets, R
We report. taper designs with high transmission efficiencies and With lengths shorter than those needed for. adiabatic operation., The tapering, occurs between rectangular optical waveguides with the...
Switching in coupled nonlinear photonic-crystal resonators (2005)
Maes, B, Bienstman, P, Baets, R
Using coupled-mode theory we examine the linear and Kerr nonlinear behavior of multiple consecutive photonic-crystal switches. Two types of resonators are considered, those with the cavity inside and...
Modeling second-harmonic generation by use of mode expansion (2005)
Maes, B, Bienstman, P, Baets, R
We present an accurate and efficient method of modeling second-harmonic generation in two-dimensional structures by use of eigemnode expansion. By using the undepleted-pump approximation we uncouple...
Band-edge lasing in gold-clad photonic-crystal membranes (2005)
Van Campenhout, J, Bienstman, P, Baets, R
We investigate the possibility to achieve band-edge lasing in optically thick gold-clad photonic-crystal (PhC) membranes, with a dielectric thickness of around 1 mu m. We have performed a...
Sanchis, P, Marti, J, Bogaerts, W, Dumon, P, Van Thourhout, D, Baets, R
The experimental implementation of an adiabatic coupling technique for efficient coupling between photonic crystal single-line defect waveguides and coupled-cavity waveguides is reported. The samples...
Marti, J, Dumon, P, Van Thourhout, D, Baets, R
The experimental implementation of an adiabatic coupling technique for efficient coupling between photonic crystal single-line defect waveguides and coupled-cavity waveguides is reported. The samples...
Lelarge, F, Dagens, B, Cuisin, C, Le Gouezigou, O, Patriarche, G, Van Parys, W, ...
The GSMBE growth of GaInAsP/InP 1.3-µ m-TM active core and highly p-doped contacting layers required for fabricating an integrated optical waveguide isolator is studied in detail. The deposition of...
Ultra-thin benzocyclobutene bonding of III-V dies onto SOI substrate (2005)
Roelkens, G, Van Thourhout, D, Baets, R
The bonding of InP/InGaAsP heterostructures dies onto an SOI substrate is reported. Bonding layer thicknesses down to 200 nm were reproducibly achieved. Bonding was achieved both on unprocessed SOI...
Nonlinear lattice model for spatially guided solitons in nonlinear photonic crystals (2005)
Maes, B, Bienstman, P, Danckaert, J, Baets, R, Veretennicoff, I
Numerical simulations have shown the existence of transversely localized guided modes in nonlinear two-dimensional photonic crystals. These soliton-like Bloch waves induce their own waveguide in a...
Bloch modes and self-localized waveguides in nonlinear photonic crystals (2005)
Maes, B, Bienstman, P, Baets, R
We present a modeling technique that uses eigenmode expansion to simulate infinite periodic structures with Kerr nonlinearity. Using a unit cell with Bloch boundary conditions, our iterative...
D'Oosterlinck, W, Morthier, G, Smit, M, Baets, R
A new optical decision or thresholding circuit, composed of a semiconductor optical amplifier (SOA) and a distributed feedback (DFB) laser diode in an optical feedback scheme is proposed. This new...
Thin-film devices fabricated with benzocyclobutene adhesive wafer bonding (2005)
Christiaens, I, Roelkens, G, De Mesel, K, Van Thourhout, D, Baets, R
In this paper, we present and elaborate on die to wafer bonding technology with benzocyclobutene (BCB). This technology allows to fabricate a variety of reliable waferbonded components in a fairly...
Resonator-based all-optical Kerr-nonlinear phase shifting: Design and limitations (2005)
Priem, G, Notebaert, I, Bienstman, P, Morthier, G, Baets, R
The design of all-optical phase shifting by means of Kerr-nonlinear resonators is investigated using a one-dimensional analytical model. Dependence on different device parameters and design...
Integration of InP/InGaAsP photodetectors onto silicon-on-insulator waveguide circuits (2005)
Roelkens, G, Brouckaert, J, Taillaert, D, Dumon, P, Bogaerts, W, Van Thourhout, D, ...
The integration of optical functionalities on a chip has been a long standing goal in the optical community. Given the call for more integration, Silicon-on-Insulator (SOI) is a material system of...
Simple low-loss waveguide bends using ARROW effect (2005)
Galarza, M, Moreno, J, Lopez-Amo, M, Christiaens, I, Van Thourhout, D, Baets, R
A new concept for reducing bend loss in dielectric planar waveguides is presented. It is based on the introduction of a set of antiresonant reflecting optical waveguides (ARROWs) on the outside of...
Analysis and design of efficient coupling in photonic crystal circuits (2005)
Sanchis, P, Marti, J, Luyssaert, B, Dumon, P, Bienstman, P, Baets, R
A rigorous analysis and design of efficient coupling from photonic crystal (PhC) waveguides into conventional dielectric waveguides is reported. Closed-form expressions for the reflection and...
A compact photonic horizontal spot-size converter realized in silicon-on-insulator (2005)
Luyssaert, B, Vandersteegen, P, Taillaert, D, Dumon, P, Bogaerts, W, Bienstman, P, ...
We present a compact planar coupler connecting two optical waveguides with highly different widths. The coupler consists of various nonperiodic waveguide sections, whose dimensions are determined...
Nanophotonic waveguides in silicon-on-insulator fabricated with CMOS technology (2005)
Bogaerts, W, Baets, R, Dumon, P, Wiaux, V, Beckx, S, Taillaert, D, ...
High-index-contrast, wavelength-scale structures are key to ultracompact integration of photonic integrated circuits. The fabrication of these nanophotonic structures in silicon-on-insulator using...
Modeling of a novel InP-based monolithically integrated magneto-optical waveguide isolator (2005)
Postava, K, Vanwolleghem, M, Van Thourhout, D, Baets, R, Visnovsky, S, Beauvillain, P, ...
A method based on Yeh's rigorous 4 X 4 matrix algebra and a fast perturbation-theory-based method are proposed for modeling and optimization of an integrated magneto-optical (MO) waveguide isolator....
Efficient silicon-on-insulator fiber coupler fabricated using 248-nm-deep UV lithography (2005)
Roelkens, G, Dumon, P, Bogaerts, W, Van Thourhout, D, Baets, R
We present a silicon-on-insulator (SOI) waveguide to fiber coupler fabricated using 248-nm-deep ultraviolet lithography. The loss of the taper structure is around 1 dB while the coupling loss from a...
Nanophotonic waveguides in silicon-on-insulator fabricated with CMOS technology (2005)
Baets, R, Dumon, P, Wiaux, V, Beckx, S, Taillaert, D, ...
High-index-contrast, wavelength-scale structures are key to ultracompact integration of photonic integrated circuits. The fabrication of these nanophotonic structures in silicon-on-insulator using...
A compact photonic horizontal spot-size converter realized in silicon-on-insulator (2005)
Vandersteegen, P, Taillaert, D, Dumon, P, Bienstman, P, ...
We present a compact planar coupler connecting two optical waveguides with highly different widths. The coupler consists of various nonperiodic waveguide sections, whose dimensions are determined...
Sanchis, P, Martinez, A, Garcia, J, Cuesta-Soto, F, Marti, J, Dumon, P, ...
The experimental demonstration of an adiabatic coupling technique between Siliconon-insulator photonic crystal single-line defect waveguides and coupled-cavity waveguides is reported. Experimental...
Demonstration of 81dB/cm isolation on an InP-based optical waveguide isolator (2005)
Van Parys, W, Vanwolleghem, M, Van Thourhout, D, Baets, R, Decobert, J, Dagens, B, ...
In a traditional optical telecom link, an optical isolator blocks optical feedback in the laser and, as such, eliminates one of the main noise sources in the system. Current optical isolators are...
Microring resonators in silicon-on-insulator (2005)
Dumon, P, Christiaens, I, Bogaerts, W, Wiaux, V, Wouters, J, Beckx, S, ...
Microring resonators in high refractive index contrast waveguides can be a building block for densely integrated wavelength selective filters, which can be used for WDM purposes and other...
Roelkens, G, Van Thourhout, D, Christiaens, I, Baets, R, Smit, M
This paper describes a novel way to integrate active III-V devices and SOI passive devices by bonding a III-V film on top of a processed SOI waveguide substrate using a 200nm thick Benzocyclobutene...
Semi-analytic analysis of complex photonic crystal structures (2005)
Sanchis, P, Martí, J, García, J, Bienstman, P, Baets, R
Photonic crystals (PhCs), periodic structures with a period of the order of the wavelength of light, have been the subject of an increasing research effort due to their ability for controlling the...
Simple low-loss waveguide bends using antiresonant reflecting optical waveguides (2005)
Galarza, M, Moreno, J, López-Amo, M, Christiaens, I, Van Thourhout, D, Baets, R
Curved waveguides are key components in photonic integrated circuits and are mainly used to change the direction of light or to introduce a lateral displacement. In order to achieve a high packing...
Extending the complex Jacobi iteration method to simulate Kerr non-linear effects (2005)
Vandersteegen, P, Bienstman, P, Baets, R
In this paper we present a numerical method to simulate an area containing materials with a non-linear third order Kerr effect. This method is based on an extension of the recently introduced complex...
Effect of loss mechanisms on kerr-nonlinear resonator behaviour (2005)
Priem, G, Dumon, P, Bienstman, P, Morthier, G, Baets, R
The degradation of Kerr-nonlinear behaviour in resonating structures due to optical loss is investigated. From this, the feasibility of ultrafast, Kerr-nonlinear operation is derived for the AIGaAs...
D'oosterlinck, W, Verspurten, S, Morthier, G, Baets, R, Smit, M
A new regenerator concept based on the feedback between a laser diode and an SOA has been tested usin an integrated version. Excellent regenerator characteristics, both static and 10 Gbit/s dynamic...
Compact and highly-efficient vertical couplers for active-passive monolithic integration (2005)
Galarza, M, Van Thourhout, D, Baets, R, López-Amo, M
Ultra-compact low-loss vertical coupling between a 1.55 µm InGaAsP bulk active waveguide and a passive waveguide based on bimodal interference is presented. Simulation results show polarization...
Self-localized waveguides in nonlinear photonic crystals (2005)
Maes, B, Bienstman, P, Baets, R, Danckaert, J, Veretennicoff, I
We study a new variety of self-localized bloch modes or gap solitions in Kerr nonlinear high-contrast photonic crystals without defects. In addition to rigorous calculations, we develop a...
Silicon-on-insulator platform for integrated wavelength-selective components (invited paper) (2005)
Taillaert, D, Baets, R, Dumon, P, Bogaerts, W, Van Thourhout, D, Luyssaert, B, ...
The Silicon-on-Insulator (SOI) platform allows to make ultra-compact photonic integrated circuits by means of standard processes used for silicon CMOS. Basic properties of SOI waveguides and the...
Widely tunable lasers for future WDM networks (2005)
Laroy, R, Morthier, G, Baets, R
During the past years two new types of widely tunable laser structures that can be used in future telecom netwoks were designed and fabricated within the European IST project NEWTON.
Semi-analytic analysis of complex photonic crystal structures (2005)
Sanchis, P, Marti, J, Garcia, J, Bienstman, P, Baets, R
The transmission and reflection performance of complex photonic crystal structures coupled to dielectric waveguides are analyzed by means of a semi-analytic treatment based on previously derived...
Low energy ultrafast switching in silicon wire waveguides (2005)
Nunes, L, Liang, T, Abedin, K, Van Thourhout, D, Dumon, P, Baets, R, ...
1.9ps optical switching at 40GHz repetition rate has been successfully demonstrated in submicron-size silicon wire waveguides. Ultrafast operation is achieved by induced optical absorption from...
All-optical wavelength conversion in silicon wire waveguides (2005)
Liang, T, Nunes, L, Tsang, H, Tsuchiya, M, Van Thourhout, D, Dumon, P, ...
We describe the use of two-photon absorption process in submicron silicon wire waveguides for alloptical wavelength conversion by cross-absorption modulation scheme. Optical pulses of 1.6 ps at 1GHz...
Sanchis, P, Marti, J, Bogaerts, W, Dumon, P, Baets, R
Experimental results of a high efficiency coupling technique for planar photonic crystals are reported. A 3D analysis is carried out to analyze the influence of out-of-plane losses and the...
Recent progress in SOI nanophotonic waveguides (invited paper) (2005)
Van Thourhout, D, Dumon, P, Bogaerts, W, Roelkens, G, Taillaert, D, Priem, G, ...
Submicron Silicon wire waveguides allow realising extremely compact photonic ICs and can be fabricated in a cost-effective and reliable manner. We demonstrate basic waveguide functions and results...
A compact fiber-to-waveguide coupler based on angled slots (2005)
Van Laere, F, Taillaert, D, Kotlyar, M, Van Thourhout, D, Krauss, T, Baets, R
We present a compact grating coupler, consisting of slanted air slots, for coupling from single-mode fiber to InP-based waveguides. The theoretical coupling efficiency is better than 50% and first...
Basic photonic wire components in silicon-on-insulator (2005)
Dumon, P, Roelkens, G, Bogaerts, W, Van Thourhout, D, Wouters, J, Beckx, S, ...
We fabricated basic structures for photonic integrated circuits in Silicon-on-insulator photonic wires using CMOS technology. We show low-loss bends and waveguide intersections, power splitters,...
Silicon-on-insulator based nano-photonics: why, how, what for ? (invited paper) (2005)
Baets, R, Dumon, P, Bogaerts, W, Roelkens, G, Taillaert, D, Luyssaert, B, ...
Silicon-on-Insulator is rapidly emerging as a versatile platform for a variety of integrated nano-photonic components. This paper discusses the variety of merits offered by this system. The key...
Nunes, L, Liang, T, Tsang, H, Tsuchiya, M, Van Thourhout, D, Dumon, P, ...
We demonstrate all-optical wavelength conversion by means of cross absorption effect induced by Two Photon Absorption (TPA) in submicron sized Si wire waveguides. Optical pulses of 1.6 ps at 1 GHz...
Maes, B, Bienstman, P, Baets, R
We present an efficient modeling method to simulate second-harmonic generation in arbitrary two-dimensional devices. By employing eigenmode expansion the algorithm is fully vectorial and especially...
Identification of gap soliton through phase measurement (2005)
Gorza, S, Cambournac, C, Emplit, P, Haelterman, M, Taillaert, D, Maes, B, ...
We fully characterize the stationary spatial gap soliton in periodic planar waveguide through the measurement of the transverse phase evolution across the soliton beam.
Baets, R, Van Thourhout, D, Morthier, G, Bogaerts, W, Vanholme, L
This paper provides a short description of three European projects in which Silicon-on-Insulator based high index contrast waveguide devices play a prominent role. These projects include the European...
Efficient fiber to SOI photonic wire coupler fabricated using standard CMOS technology (2005)
Roelkens, G, Dumon, P, Bogaerts, W, Van Thourhout, D, Baets, R
We present a Silicon-on Insulator spot size converter fabricated using 248 nm deep UV lithography. The loss of the taper structure is around 1 dB over more than 60 nm wavelength range while the...
Technologies for on-chip optical interconnects (invited paper) (2005)
Van Thourhout, D, Roelkens, G, Van Campenhout, J, Brouckaert, J, Baets, R
We propose an integration approach for on-chip optical interconnect compatible with waferscale processing technologies and future advanced electronic circuits. The use of ultra-compact SOI-based...
InP-nanocrystal monolayer deposition onto silicon-on-insulator structures (2005)
Priem, G, Moreels, I, Dumon, P, Hens, Z, Bogaerts, W, Van Thourhout, D, ...
We demonstrate, for the first time, the deposition of an InP nanocrystal monolayer onto a processed Silicon-on-Insulator substrate containing nanophotonic devices. From the first results, propagation...
Optical bistability analysis inside a two-bus ring resonator (2005)
Priem, G, Dumon, P, Bogaerts, W, Van Thourhout, D, Morthier, G, Baets, R
We demonstrate experimentally optical bistability inside a two-bus ring resonator fabricated in Silicon-on-Insulator with a power of only 680 µW. We have analysed the different contributions leading...
Ultrafast, all-optical regeneration functionalities inside a Kerr-nonlinear platform (2005)
Priem, G, Vandersteegen, P, Bienstman, P, Morthier, G, Baets, R
We theoretically investigate the potential of a Kerr-nonlinear resonator for all-optical regeneration. In combination with an optical amplifier, this ultra-compact structure allows for an extremely...
Van Campenhout, J, Rojo-Romeo, P, Van Thourhout, D, Seassal, C, Regreny, P, Di Cioccio, L, ...
We report on electrically pumped lasing in a microdisk cavity in an InP-based membrane bonded on top of a silicon wafer. The top metal contact is placed in the center of the disk, whereas the bottom...
Magneto-optical waveguide isolator with 104 dB/cm non-reciprocal propagation (2005)
Lagae, L, Van Parys, W, Moeyersoon, B, Vanheertum, R, Van Thourhout, D, Baets, R, ...
Intrinsic modulation bandwidths of widely tunable SG-TTG lasers (2005)
Laroy, R, Morthier, G, Todt, R, Meyer, R, Amann, M, Baets, R
Influence of etched silicon patterns on the liquid crystal orientation (2005)
Liquid Crystals on structured surfaces have many applications. The structures can be used to obtain specific alignments, such as those required for bistable devices [1]. They can also appear in...
Nano imprint lithography for photonic structure patterning (2005)
Scheerlinck, S, Van Thourhout, D, Baets, R
Nano Imprint Lithography offers a route to high resolution patterning beyond the resolution limits imposed by optical lithography and at low cost. In this paper we present results of Nano Imprint...
Amplifying AIGaInAs/InP waveguide optical isolator with 99 dB/cm non-reciprocal propagation (2005)
Van Parys, W, Van Thourhout, D, Baets, R, Dagens, B, Decobert, J, Le Gouezigou, O, ...
Significant advance of the state-of-the-art performance of a TM-mode amplifying optical waveguide isolator, operating at 1300mm wavelength, has been achieved. The magneto-optical Kerr effect induces...
Simulating non-linear third order effects with the adapted complex jacobi iteration method (2005)
Vandersteegen, P, Maes, B, Bienstman, P, Baets, R
We present a numerical method to simulate the third order Kerr effect in wavelength scale dielectric structures. This is done by extending the recently introduced complex Jacobi Iteration method....
Compact arrayed waveguide grating devices in silicon-on-insulator (2005)
Dumon, P, Bogaerts, W, Van Thourhout, D, Morthier, G, Baets, R
Very compact arrayed waveguide gratings were fabricated in Silicon-on-Insulator using CMOS compatible processes. The high index contrast makes a 5 micron bend radius possible. Now, the device size is...
Liquid crystal orientation on patterns etched in silicon-on-insulator (2005)
Liquid Crystals have many applications in photonics, but often the geometrical properties of the photonic structures give problems for controlling the alignment of the liquid crystal. We demonstrate...
A nanophotonic 4x4 wavelength router in silicon-on-insulator (2005)
Dumon, P, Bogaerts, W, Van Thourhout, D, Baets, R, Jaenen, P, Beckx, S, ...
Vanwolleghem, M, Van Parys, W, Gogol, P, Baets, R, Beauvillain, P
Nous avons modélisé l'optimisation d'un isolateur magnéto-optique intégré. Ce dispositif est constitué d'un guide optique à 1,3 µm avce structure amplificarrice à multipuits quantiques....
Compact and efficient fibre-to-waveguide grating couplers in InP-membrane (2005)
Van Laere, F, Ayre, M, Taillaert, D, Van Thourhout, D, Krauss, T, Baets, R
High coupling losses between nanophotonic waveguides on chip and optical fibre are a key problem in optical communication networks. Grating couplers made in high vertical index-contrast material...
Silicon-on-insulator nanophotonics (invited paper) (2005)
Bogaerts, W, Dumon, P, Jaenen, P, Wouters, J, Beckx, S, Wiaux, V, ...
Nanophotonics promise a dramatic scale reduction compared to contemporary photonic components. This allows the integration of many functions onto a chip. Silicon-on-insulator (SOI) is an ideal...
Sanchis, P, Garcia, J, Marti, J, Bogaerts, Walter; U0008825, Dumon, P, Taillaert, D, ...
The experimental demonstration of a high efficiency coupling technique based on setting a single defect within a photonic crystal (PhC) taper is reported. The samples were fabricated on a...
Bandwidth engineering of photonic crystal waveguide bends (2004)
Borel, PI, Frandsen, LH, Harpoth, A, Leon, JB, Liu, H, Kristensen, M, ...
An effective design principle has been applied to photonic crystal waveguide bends fabricated in silicon-on-insulator material using deep UV lithography resulting in a large increase in the low-loss...
Ultralow-loss 3-dB photonic crystal waveguide splitter (2004)
Frandsen, L H, Borel, P I, Zhuang, Y X, Harpøth, A, Thorhauge, M, Kristensen, M, ...
A photonic crystal waveguide splitter that exhibits ultralow-loss 3-dB splitting for TE-polarized light is fabricated in silicon-on-insulator material by use of deep UV lithography. The high...
Low-loss SOI photonic wires and ring resonators fabricated with deep UV lithography (2004)
Dumon, P, Bogaerts, Walter; U0008825, Wiaux, V, Wouters, J, Beckx, S, Van Campenhout, J, ...
We demonstrate single-mode photonic wires in Silicon-on-insulator with propagation loss as low as 2.4 dB/cm, fabricated with deep ultraviolet lithography and dry etching. We have also made compact...
Basic structures for photonic integrated circuits in silicon-on-insulator (2004)
Taillaert, D, Luyssaert, B, Dumon, P, Van Campenhout, J, Bienstman, P, ...
For the compact integration of photonic circuits, wavelength-scale structures with a high index contrast are a key requirement. We developed a fabrication process for these nanophotonic structures in...
Modeling of Kerr nonlinear photonic components with mode expansion (2004)
Maes, B, Bienstman, P, Baets, R
We present an efficient numerical technique to simulate the third order Kerr effect in wavelength scale dielectric structures by expanding upon the eigenmode expansion method. A two-dimensional...
A compact two-dimenstional grating coupler used as a polarization splitter (2003)
Tailaert, D, Chong, H, Borel, P I, Frandsen, L H, De La Rue, R M, Baets, R
We demonstrate a novel polarization splitter based on a two-dimensional grating etched in a silicon-on-insulator waveguide. The device couples orthogonal modes from a single-mode optical fiber into...
A compact two-dimenstional grating coupler used as a polarization splitter (2003)
Tailaert, D, Chong, H, Borel, P I, Frandsen, L H, De La Rue, R M, Baets, R
We demonstrate a novel polarization splitter based on a two-dimensional grating etched in a silicon-on-insulator waveguide. The device couples orthogonal modes from a single-mode optical fiber into...
Scattering at sidewall roughness in photonic crystal slabs (2003)
We have simulated the effect of sidewall roughness in photonic-crystallite structures with different vertical refractive-index contrast. We treated the scattering off a sidewall irregularity as a...
Design Methodology Development for VCSEL-based Guided-Wave Optical Interconnects (2003)
De Wilde, M, Rits, O, Bockstaele, R, Baets, R, Van Campenhout, J
In systems with a high density of multi-gigabit per second communication channels---each spanning distances of a few cm to about a metre---optical interconnects are put forward as an alternative to...
De Wilde, M, Rits, O, Bockstaele, R, Van Campenhout, J, Baets, R
In order to satisfy the increasing demand for interchip interconnect bandwidth, a number of current research projects are concentrating on the use of waveguided optical interconnect arrays to span...
Fabrication of photonic crystals in silicon-on-insulator using 248-nm deep UV lithography (2002)
Wiaux, V, Taillaert, D, Beckx, S, Luyssaert, B, Bienstman, P, ...
We demonstrate wavelength-scale photonic nanostructures, including photonic crystals, fabricated in silicon-on-insulator using deep ultraviolet (UV) lithography. We discuss the mass-manufacturing...
Bienstman, P, Krauss, TF, Van Daele, P, Moerman, I, ...
We have designed and fabricated an out-of-plane coupler for butt-coupling from fiber to compact planar waveguides. The coupler is based on a short second-order grating or photonic crystal, etched in...
Out-of-plane scattering in 1-D photonic crystal slabs (2002)
Bienstman, P, Taillaert, D, Baets, R, De Zutter, D
We present a detailed study of out-of-plane scattering losses in a 1D approximation of 2D photonic crystal slabs. In 2D photonic crystals with a waveguide structure in the third dimension, the...
Bragg waveguide grating as a 1ID photonic bandgap structure: COST 268 modelling task (2002)
Ctyroky, J., Helftert, S., Pregla, R., Bienstman, P., Baets, R., Ridder, R.M. De, ...
Out-of-plane scattering in photonic crystal slabs (2001)
Bienstman, P, Taillaert, D, Baets, R, De Zutter, D
Photonic crystal slabs combine a slab waveguide with an in-plane photonic crystal. Light is then confined in-plane by the photonic crystal and out-of-plane by the slab waveguide. The etched...
Van Caenegem, T, Van Thourhout, D, Galarza, M, Verstuyft, S, Moerman, I, Van Daele, P, ...
A multi-wavelength laser (MWL) is fabricated by means of selective area growth (SAG) with metal organic vapour phase epitaxy (MOVPE). The MWL consists of an array of amplifiers monolithically...
InP 1.3 mu m microcavity LEDs with high quantum efficiency (2000)
Depreter, B, Moerman, I, Baets, R, Van Daele, P, Demeester, P
We report on the growth and the fabrication of InP-based microcavity light-emitting diodes (MCLEDs) operating at 1300 nm wavelength. Thus far, the MCLED concept was mainly used in the GaAs material...
InAlGaP microcavity LEDs on Ge-substrates (2000)
Modak, P, Delbeke, D, Moerman, I, Baets, R, Van Daele, P, Demeester, P
We report on the growth of InAlGaP-layers and the fabrication of red microcavity LEDs (MCLEDs) on germanium (Ge) substrates. High-quality InAlGaP-layers have been grown on 3" Ge-substrates with...
AlGaInP microcavity light-emitting diodes at 650 nm on Ge substrates (2000)
Modak, P, D'Hondt, M, Delbeke, D, Moerman, I, Van Daele, P, Baets, R, ...
We demonstrate microcavity light emitting diodes (MCLEDs) emitting at 650 nm on Ge substrates, Ge has the advantage of lower cost and higher strength compared to GaAs substrates. The multi-quantum...
InP-based 1300nm microcavity LEDs with 9% quantum efficiency (2000)
Depreter, B, Moerman, I, Baets, R, Van Daele, P, Demeester, P
InP-based microcavity Light emitting diodes (MCLEDs) operating at a wavelength of 1300nm are reported. An output power of 3.8mW and total external quantum efficiency of 9% are reported. These values...
Resonant cavity LED's optimized for coupling to polymer optical fibers (1999)
Bockstaele, R, Sys, C, Blondelle, J, Dhoedt, B, Moerman, I, Van Daele, P, ...
Planar resonant-cavity light-emitting diodes have been optimized to meet optical interconnect requirements. The microcavity effect is exploited to increase the extraction efficiency into a given...
Performances of optical (1998)
R Bockstaele, A Van Hove, B Dhoedt, R Baets
multi-chip-module interconnects: comparing guided-wave and free-space pathways V Baukens†, G Verschaffelt†, P Tuteleers†, P Vynck†,
Recycling of guided mode light emission in planar microcavity light emitting diodes (1997)
DeNeve, H, Blondelle, J, VanDaele, P, Demeester, P, Baets, R, Borghs, Gustaaf; U0009515
Results are presented on planar microcavity light emitting diodes with different device diameters. A record external quantum efficiency of 20% is achieved for a 1.5 mm light emitting diode, The...
Very low loss compact waveguide beam collimators on InP (1996)
Wei, C, Groen, FH, Vreeburg, CGM, Demeester, P, Baets, R
Compact waveguide beam collimators have been designed and realised using elliptic couplers on InP. The characteristics of the collimated beams have been measured and were found to be of high quality...
Optical properties of a ZnSSe microcavity fabricated by epitaxial lift-off (1996)
Aherne, T, Bradley, AL, Doran, JP, OGorman, J, Heffernan, JF, Hegarty, J, ...
We have fabricated and studied the optical properties of a planar II-VI ZnSSe microcavity. The MBE grown II-VI epi-layers were subsequently transplanted onto a metal coated GaAs substrate using the...
Haes, J., Baets, R., Weinert, C.M., Gravert, M., Nolting, H.P., Andrade, M.A., ...
The performance and accuracy of a number of propagative algorithms are compared for the simulation of tapered high contrast step index slab waveguides. The considered methods include paraxial as well...
The bidirectional mode expansion method for 2-dimensional wave-guides - the tm case (1995)
The mode expansion propagation method is a modelling technique for a large variety of waveguide components. Until now only the case with TE modes has been reported; we give details on the mode...
Blondelle, J, Deneve, H, Demeester, P, Vandaele, P, Borghs, Gustaaf; U0009515, Baets, R
High efficiency substrate emitting microcavity InGaAs/(Al)GaAs 3 QW LEDs are reported. The use of regrowth for cavity resonance tuning and its effect on device performance, are demonstrated. The best...
High-efficiency planar microcavity leds - comparison of design and experiment (1995)
Deneve, H, Blondelle, J, Baets, R, Demeester, P, Vandaele, P, Borghs, Gustaaf; U0009515
This paper describes the design of substrate emitting microcavity LED's and a comparison of experimental results with modeling results, The modeling is based on a simulation tool which accounts for...
Vermeire, G, Vermaerke, F, Moerman, I, Haes, J, Baets, R, Vandaele, P, ...
In this paper we propose the monolithic integration of quantum well InGaAs/GaAs 0.98 mu m lasers with passive mode-size convertors using the shadow-masked growth technique. The full width at half...
Blondelle, J, Deneve, H, Demeester, P, Vandaele, P, Borghs, Gustaaf; U0009515, Baets, R
High efficiency substrate emitting microcavity InGaAs/(Al)GaAs single QW LEDs are reported. The influence of the reflectivity of the bottom GaAs/AlAs DBR and cavity dimensions have been investigated....
Moerman, I, Dhondt, M, Vanderbauwhede, W, Coudenys, G, Haes, J, Dedobbelaere, P, ...
We present a vertically tapered InGaAsP/InP planar buried heterostructure (PBH) laser for low loss coupling to single-mode fibers. To achieve the vertical tapering we make use of the shadow masked...
Integrable devices for wavelength multiplexing optical communication-systems (1993)
Devices for wavelength division multiplexing (WDM) applications become very important in today's communication systems. Here the operation principle and the main characteristics of some key...
Investigation of a novel bragg reflector - partly gain-coupled dbr filter (1992)
David, K, Morthier, G, Baets, R
A theoretical analysis of the properties of DBR filters and DFB amplifiers with gain gratings is presented. The results show that, contrary to the case of devices with only an index grating, no...
Filter characteristics of dbr amplifier with index and gain coupling (1991)
David, K, Morthier, G, Baets, R
DBR filters with a gain grating are examined for the first time. Simple formulas are derived for the peak reflection and good approximations for the 3 dB bandwidth are given. The results show that...
Epitaxial lift-off gaas leds to si for fabrication of opto-electronic integrated-circuits (1990)
Pollentier, I, Demeester, P, Ackaert, A, Buydens, L, Vandaele, P, Baets, R