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15 February 2012 Sub-picosecond laser amplifier with >1mJ pulse energy and 33W average power
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Abstract
We demonstrated a compact femtosecond laser producing 1mJ pulse energy and more than 30 W average power using the amplification of a broadband femtosecond oscillator in an Yb:YAG thin disk regenerative amplifier in a compact CPA configuration. The pulse duration slightly decreases with energy down to a value of 790 fs still keeping the amplified spectral width <3 nm and thus suitable for efficient second harmonic generation. This source answers to the need for high power, high energy and reliable femtosecond sources notably in the field of innovative precision micromachining and high repetition rate OPA/OPCPA pumping.
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M. Delaigue, S. Ricaud, C. Hönninger, and E. Mottay "Sub-picosecond laser amplifier with >1mJ pulse energy and 33W average power", Proc. SPIE 8247, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XII, 82470I (15 February 2012); https://doi.org/10.1117/12.907471
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