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

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.

Domaines: Optique / photonique; Optique [physics.optics]

Mathieu Paurisse, Marc Hanna, Frédéric Druon, Patrick Georges. Wavefront control of a multicore ytterbium-doped pulse fiber amplifier by digital holography. Optics Letters, 2010, 35 (9), pp.1428 - 1430. ⟨hal-00519936⟩