LD pumped cryogenic cooled Yb:YAG disk regenerative amplif ier

A diode-pumped cryogenic-cooled Yb:YAG regenerative amplifier based on the thin disk concept, producing 14.2-mJ, 10-ns pulses with optical-to-optical conversion efficiency of ~7% at a repetition rate of 10 Hz at 163 K, is presented.