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High energy, single-mode, narrow-linewidth fiber laser source using stimulated Brillouin scattering beam cleanup

Abstract : We propose an original nonlinear beam cleaning fiber laser architecture to obtain high energy pulses with a good beam quality and a narrow linewidth. The output beam of a large core Er:Yb co-doped multimode fiber amplifier (M2 ~ 6, 220 μJ) is converted into a near diffraction limited beam (M2 = 1.6) through a stimulated Brillouin scattering injection seeded beam cleanup process. We report in this experiment a multimode to single mode conversion efficiency of 50% while preserving the master oscillator linewidth
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https://hal-iogs.archives-ouvertes.fr/hal-00700697
Contributor : Marie-Laure Edwards <>
Submitted on : Wednesday, May 23, 2012 - 4:30:01 PM
Last modification on : Wednesday, September 16, 2020 - 5:37:38 PM
Long-term archiving on: : Thursday, December 15, 2016 - 8:17:39 AM

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Bastien Steinhausser, Arnaud Brignon, Eric Lallier, Jean-Pierre Huignard, Patrick Georges. High energy, single-mode, narrow-linewidth fiber laser source using stimulated Brillouin scattering beam cleanup. Optics Express, Optical Society of America, 2007, 15 (10), pp.6464-6469. ⟨hal-00700697⟩

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