title: Yb:YAG single crystal fiber power amplifier for femtosecond sources.
abstract: We demonstrate a versatile femtosecond power amplifier using a Yb:YAG single crystal fiber operating from 10 kHz to 10 MHz. For a total pump power of 75 W, up to 30 W is generated from the double-pass power amplifier. At a repetition rate of 10 kHz, an output energy of 1 mJ is obtained after recompression. In this configuration, the pulse duration is 380 fs, corresponding to a peak power of 2.2 GW. The M2 beam quality factor is better than 1.1 for investigated parameters.
authors: Laboratoire Charles Fabry, Institut d’Optique, CNRS, Université Paris Sud, Palaiseau, France. xavier.delen@institutoptique.fr
authors: Xavier
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authors: Délen
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