Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Flavien Liégeois"'
Publikováno v:
IEEE Photonics Technology Letters. 17:2544-2546
We demonstrate a single-frequency and wavelength-switchable fiber ring laser obtained by a Lyot filter used in combination with a sampled fiber Bragg grating and a saturable absorber. The operating wavelength of the laser can be tuned, with a constan
Publikováno v:
SPIE Proceedings.
We report on experimental results on a high power, all-fibred, linearly polarized, mode-locked laser at 1.03 µm. The laser generates pulses of 40 ps wide at a repetition rate of 52 MHz, exhibiting 12 kW peak power. Dispersion in optical fibres is co
Autor:
Didier Lekime, Jean-Bernard Lecourt, Yves Hernandez, Domenico Giannone, Charles Duterte, Flavien Liégeois
Publikováno v:
SPIE Proceedings.
We report on a high-power ultra-short fiber laser for thin film solar cells micromachining. The laser is based on Chirped Pulse Amplification (CPA) scheme. The pulses are stretched to hundreds of picoseconds prior to amplification and can be compress
Autor:
Benjamin Cocquelin, François Salin, Simonette Pierrot, Julien Saby, Flavien Liégeois, Yves Hernandez, Domenico Giannone
Publikováno v:
Advances in Optical Materials.
We report on a 93W, 1.1µJ, 83MHz, 35ps MOPA fibre laser based on an Yb mode-locked fibre oscillator and a rod-type LMA amplifier. This configuration can generate up to 20W at 343nm and we demonstrated over 2W at 257nm.
Autor:
Morten Ibsen, Yves Hernandez, Flavien Liégeois, Sébastien Guillemet, Evgeny M. Dianov, Alexey V. Gladyshev, Albert Canagasabey, Mikhail V. Yashkov, Costantino Corbari, Peter G. Kazansky, Alexey F. Kosolapov
Publikováno v:
Optics letters. 34(16)
The generation of 236 mW of second-harmonic power in a 32-cm-long periodically poled silica fiber, corresponding to an average conversion efficiency of 15.2+/-0.5%, is reported. This represents the highest normalized second-harmonic conversion and th
Autor:
Alexey V. Gladyshev, Peter G. Kazansky, Albert Canagasabey, Flavien Liégeois, Evgeny M. Dianov, Yves Hernandez, Sébastien Guillemet, Costantino Corbari, Morten Ibsen
Publikováno v:
CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference.
Thermally poled silica fibres are an attractive all-fibre solution to frequency conversion of high power fibre lasers. In comparison to nonlinear crystals, they offer inherently lower insertion losses, higher optical damage threshold, greater stabili
Autor:
Flavien Liégeois, Benoit Cadier, Thierry Robin, Damien Kinet, Yves Hernandez, Domenico Giannone
Publikováno v:
SPIE Proceedings.
In this letter, we report on the study of a new all-fiber laser source suitable for coherent Doppler LIDAR use in the eyesafe domain. The laser consists on a MOPA configuration where the Master Oscillator is a modulated ultranarrow (< 8 kHz) fiber la
Autor:
Anthony Bertrand, Jean-Bernard Lecourt, Charles Duterte, Flavien Liégeois, Domenico Giannone, Yves Hernandez
Publikováno v:
SPIE Proceedings.
We experimentally compared the co- and counter-propagative pumping scheme for the amplification of ultra-short optical pulses. According to pumping direction we show that optical pulses with a duration of 75 fs and 100mW of average output power can b
Pulsed high-peak-power and single-frequency fibre laser design for LIDAR aircraft safety application
Publikováno v:
SPIE Proceedings.
Laser wind velocimeters work by monitoring the Doppler shift induced on the backscattered light by aerosols that are present in the air. Recently there has been a growing interest in the scientific community for developing systems operating at wavele
Publikováno v:
Advanced Solid-State Photonics.
A novel single-longitudinal-mode erbium doped ring fiber laser with Mach-Zehnder mode filter is proposed. The output power is 15 dBm at 1547 nm with a 50-dB side-mode suppression ratio and a 13-kHz linewidth.