Temporal cleaning of a high energy fiber-based ultrafast laser using cross-polarized wave generation

Yoann Zaouter (1) , Patricia Ramirez (2) , Dimitris N. Papadopoulos (3, 2) , Clemens Hönninger (1) , Marc Hanna (2) , Frédéric Druon (2) , Eric Mottay (1) , Patrick Georges (2)

1 Amplitude Systèmes
2 Laboratoire Charles Fabry de l'Institut d'Optique / Lasers
3 ILE - Institut de la Lumiére Extrême

We report the use of cross-polarized wave generation to perform both pulse shortening and temporal cleaning of a high-energy ytterbium-doped fiber-based femtosecond laser system. The nonlinear processes allow both a highly efficient nonlinear conversion of 20% and a large compression ratio of 3.5, with inherently improved coherent and incoherent contrasts. This results in the generation of 37 μJ, 115 fs pulses at a repetition rate of 100 kHz with high temporal quality.

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Yoann Zaouter, Patricia Ramirez, Dimitris N. Papadopoulos, Clemens Hönninger, Marc Hanna, et al.. Temporal cleaning of a high energy fiber-based ultrafast laser using cross-polarized wave generation. Optics Letters, 2011, 36 (10), pp.1830. ⟨hal-00702153⟩