High-power, 1-ps, all-Yb:YAG thin-disk regenerative amplifier
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We report a 100 W, 20 mJ, 1-ps, all-Yb:YAG thin-disk regenerative amplifier seeded by a microjoule-level Yb:YAG thin-disk Kerr-lens mode-locked oscillator. The regenerative amplifier is implemented in a chirped pulse amplification system and operates at an ambient temperature in air, delivering ultrastable output pulses at a 5 kHz repetition rate and with a root mean square power noise value of less than 0.5%. Second harmonic generation of the amplifier’s output in a 1.5 mm-thick BBO crystal results in more than 70 W at 515 nm, making the system an attractive source for pumping optical parametric chirped pulse amplifiers in the visible and near-infrared spectral ranges.
Hanieh Fattahi, Ayman Alismail, Haochuan Wang, Jonathan Brons, Oleg Pronin, Theresa Buberl, Lénárd Vámos, Gunnar Arisholm, Abdallah M. Azzeer, and Ferenc Krausz, "High-power, 1-ps, all-Yb:YAG thin-disk regenerative amplifier," Opt. Lett. 41, 1126-1129 (2016)