High-Power, High-Energy Diode-Pumped Tm:YLF-Ho:YLF-ZGP Laser System

We report an efficient, TEM00, Tm:YLF-pumped Ho:YLF laser system producing 21 W CW power and 37 mJ of pulse energy in the Q-switched regime, the highest values yet reported for this material. A ZGP OPO pumped by the Ho:YLF laser produced pulse energies above 10 mJ at 50-400 Hz.