High power, 1 ps, all Yb:YAG thin disk regenerative amplifier.
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.
Optics letters