High power fiber sources (2008)
Nilsson, J., Jeong, Y., Codemard, C.A., Farrell, C., Ji, J., ...
High power fiber lasers and amplifiers have reached several kilowatts of output power, and are now leading contenders for many important applications. Beyond raw power, fibers offer advantages such...
Farrell, C., Codemard, C., Nilsson, J.
Optical amplification based on stimulated Raman scattering (SRS) in optical fibres offers the potential to generate gain at any arbitrary wavelength with an appropriate pump source. This has proved a...
A counter-propagating cascaded Raman fiber amplifier pulsed pumped with a 1.06 micron source (2007)
Farrell, C., Codemard, C., Nilsson, J.
We report gain and noise measurements for a pulsed pumped cascaded Raman fiber amplifier with a counter-propagating signal. Gain is measured as high as the 7th order Stokes for different pulse duty...
We determine the next-to-leading logarithmic (NLL) QCD corrections to the cross section sigma(e+e- to t bar t H) for center-of-mass energies up to 500 GeV. The dynamics is dominated by...
We determine the next-to-leading logarithmic (NLL) QCD corrections to the cross section sigma(e+e- to t bar t H) for center-of-mass energies up to 500 GeV. The dynamics is dominated by...
High-power master-oscillator power amplifiers based on rare-earth-doped fibres (2006)
Jeong, Y., Nilsson, J., Dupriez, P., Codemard, C., Farrell, C., Sahu, J.K., ...
In recent years there have been dramatic advances in fibre lasers. Currently, conventional single-strand cladding-pumped fibre lasers can generate output powers beyond 1 kW with high beam quality....
High average power picosecond pulses from a fiber amplified diode laser at 1060nm (2005)
Dupriez, P., Piper, A., Farrell, C., Malinowski, A., Sahu, J.K., Jeong, Y., ...
Many industrial and scientific applications require high-power, short-pulse laser systems. Semiconductor lasers have long proved to be a very convenient and practical technology to generate short...
State of the art of cw fibre lasers (2005)
Jeong, Y., Soh, D.B.S., Codemard, C.A., Dupriez, P., Farrell, C., Philippov, V., ...
Fibre lasers are thin, light-guiding strands of glass only a few times the thickness of a hair which have a tiny core doped with rare-earth materials to absorb the pump radiation and release the...
1 mJ narrow-linewidth pulsed fiber MOPA source at 1535 nm (2005)
Codemard, C., Farrell, C., Philippov, V., Dupriez, P., Sahu, J.K., Nilsson, J.
Narrow-linewidth high power pulsed "eye-safe" erbium-ytterbium doped fiber lasers and amplifiers (EYDFA) are ideal source for LIDAR systems, nonlinear optical conversion, and remote sensing thanks to...
Beyond 1 kW, the rising power of fibre lasers (2005)
Jeong, Y., Nilsson, J., Sahu, J.K., Soh, D.B.S., Dupriez, P., Codemard, C.A., ...
We describe recent dramatic advances in the high-power fibre laser technology with particular attention to ytterbium-doped fibre sources in a multitude of regimes and the prospects for further...
Current progress in high-power fiber lasers and amplifiers (2005)
Dupriez, P., Nilsson, J., Jeong, Y., Sahu, J.K., Codemard, C., Soh, D.B.S., ...
We review recent advances of high-power fiber lasers and amplifiers based on the latest experimental results. Key technologies that led to kilowatt level fiber based devices and the potential for...
High power fiber lasers (2005)
Jeong, Y., Nilsson, J., Sahu, J.K., Dupriez, P., Codemard, C.A., Soh, D.B.S., ...
We discuss fundamental aspects of high-power fiber lasers and describe their recent dramatic advances and prospects including our up-to-date experimental results with particular attention to...
The Large Higgs Energy Region in Higgs Associated Top Pair Production at the Linear Collider (2005)
The process e^+ e^- to t \bar t H is considered in the kinematic end point region where the Higgs energy is close to its maximal energy. In perturbative QCD, using the loop expansion, the amplitudes...
Conditions for one-dimensional supersonic flow of quantum gases (2004)
Giovanazzi, S., Farrell, C., Kiss, T., Leonhardt, U.
One can use transsonic Bose-Einstein condensates of alkali atoms to establish the laboratory analog of the event horizon and to measure the acoustic version of Hawking radiation. We determine the...
The Perfectly Matched Layer for nonlinear and matter waves (2004)
We discuss how the Perfectly Matched Layer (PML) can be adapted to numerical simulations of nonlinear and matter wave systems, such as Bose-Einstein condensates. We also present some examples which...
Bourgaize, D B, Farrell, C, Langley, K H, Fournier, M J
Hyperchromicity measurements and quasi-elastic laser light scattering (QELS) have been used to assess the solution structure of the metabolically stable E. coli 4.5S RNA. Results from thermal...
Bolger, G B, Erdogan, S, Jones, R E, Loughney, K, Scotland, G, Hoffmann, R, ...
We have isolated and characterized complete cDNAs for two isoforms (HSPDE4D4 and HSPDE4A5) encoded by the human PDE4D gene, one of four genes that encode cAMP-specific rolipram-inhibited 3',5'-cyclic...
Health, life, and disability insurance and hereditary nonpolyposis colorectal cancer.
Rodriguez-Bigas, M A, Vasen, H F, O'Malley, L, Rosenblatt, M J, Farrell, C, Weber, T K, ...
Bourgaize, D B, Farrell, C, Langley, K H, Fournier, M J
Hyperchromicity measurements and quasi-elastic laser light scattering (QELS) have been used to assess the solution structure of the metabolically stable E. coli 4.5S RNA. Results from thermal...
Bolger, G B, Erdogan, S, Jones, R E, Loughney, K, Scotland, G, Hoffmann, R, ...
We have isolated and characterized complete cDNAs for two isoforms (HSPDE4D4 and HSPDE4A5) encoded by the human PDE4D gene, one of four genes that encode cAMP-specific rolipram-inhibited 3',5'-cyclic...
Health, life, and disability insurance and hereditary nonpolyposis colorectal cancer.
Rodriguez-Bigas, M A, Vasen, H F, O'Malley, L, Rosenblatt, M J, Farrell, C, Weber, T K, ...