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2 results on '"(1403510) Lasers"'

1. Highly Scalable Coherent Beam Combining of Femtosecond Fiber Chirped-Pulse Amplifiers

Author

Ihsan Fsaifes, Eric Durand, Anke Heilmann, Eric Lallier, Jérôme Bourderionnet, Marie Antier, Jean-Christophe Chanteloup, Jérémy Le Dortz, Christian Larat, Severine Bellanger, Louis Daniault, Christophe Simon-Boisson, Arnaud Brignon, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Thales Research and Technologies [Orsay] (TRT), THALES, Thales Research and Technology [Palaiseau], Thales LAS France, European Project: 654148,H2020,H2020-INFRAIA-2014-2015,LASERLAB-EUROPE(2015), and THALES [France]

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, (1407090) Ultrafast lasers, Amplifier, 02 engineering and technology, 01 natural sciences, Power (physics), 010309 optics, 020210 optoelectronics & photonics, Optics, Fiber Bragg grating, 0103 physical sciences, Femtosecond, Phase noise, 0202 electrical engineering, electronic engineering, information engineering, Physics::Accelerator Physics, Fiber, business, Self-phase modulation, (1403510) Lasers, Beam (structure), OCIS codes: (1403298) Laser beam combining, fiber
Abstract

International audience; We report on the coherent beam combining of seven fiber chirped-pulse amplifiers using a highly scalable architecture. A combining efficiency of 48% is obtained in linear regime, yielding 71 W pump-limited average power after compression, with a phase noise between two fibers as low as λ/38 RMS. The experiment is operated at high B-integral, with only little impact on the combining efficiency as well as on the temporal and spatial properties of the combined beam.

Published
2018

2. Nonlinear compression of high energy fiber amplifier pulses in air-filled hypocycloid-core Kagome fiber

Author

Frédéric Druon, Pascal Dupriez, Patrick Georges, Yoann Zaouter, Benoit Debord, Achut Giree, Eric Mottay, Clemens Hönninger, Florent Guichard, Guillaume Machinet, Frédéric Gérôme, Marc Hanna, Fetah Benabid, Amplitude Systèmes, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Amplitude Technologies, PHOTONIQUE (XLIM-PHOTONIQUE), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), ALPhANOV, and Université Sciences et Technologies - Bordeaux 1

Subjects
Optical fiber, Materials science, Polarization-maintaining optical fiber, 02 engineering and technology, 7. Clean energy, 01 natural sciences, law.invention, 010309 optics, Optics, law, Fiber laser, 0103 physical sciences, Dispersion-shifted fiber, Plastic optical fiber, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Second-harmonic generation, 021001 nanoscience & nanotechnology, (3205520) Pulse compression, Atomic and Molecular Physics, and Optics, OCIS codes: (0605295) Photonic crystal fibers, Pulse compression, (3207090) Ultrafast lasers, (3207110) Ultrafast nonlinear optics, 0210 nano-technology, business, (1403510) Lasers, Photonic-crystal fiber, fiber
Abstract

International audience; We report on the generation of 34 fs and 50 µJ pulses from a high energy fiber amplifier system with nonlinear compression in an air-filled hypocycloid-core Kagome fiber. The unique properties of such fibers allow bridging the gap between solid core fibers-based and hollow capillary-based post-compression setups, thereby operating with pulse energies obtained with current state-of-the-art fiber systems. The overall transmission of the compression setup is over 70%. Together with Yb-doped fiber amplifier technologies, Kagome fibers therefore appear as a promising tool for efficient generation of pulses with durations below 50 fs, energies ranging from 10 to several hundreds of µJ, and high average powers.

Published
2015

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