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Wavefront control of a multicore ytterbium-doped pulse fiber amplifier by digital holography

Mathieu Paurisse 1 Marc Hanna 1 Frédéric Druon 1 Patrick Georges 1
1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
LCFIO - Laboratoire Charles Fabry de l'Institut d'Optique
Abstract : We demonstrate the active wavefront control of a 19-core ytterbium-doped fiber amplifier by the digital holography technique. The output wavefront is corrected even in the presence of large externally induced perturbations, with a measured output Strehl ratio of 0.6 in all cases. The wavefront-controlled multicore fiber is used to amplify 800 ps pulses at 1064 nm at a repetition rate of 40 kHz, and a gain of 23 dB is obtained.
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Mathieu Paurisse, Marc Hanna, Frédéric Druon, Patrick Georges. Wavefront control of a multicore ytterbium-doped pulse fiber amplifier by digital holography. Optics Letters, Optical Society of America - OSA Publishing, 2010, 35 (9), pp.1428 - 1430. ⟨hal-00519936⟩

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