We have demonstrated high-peak-power generation at 1 kW average power by applying an acousto-optic Q switch to a quasi-cw diode-pumped Nd:YAG master oscillator power amplifier. We achieved a maximum peak power of 2.3 MW by driving the Q switch in burst mode. The average repetition rate was 6 kHz. The corresponding beam quality was M²=9.
© 2005 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.2010) Lasers and laser optics : Diode laser arrays
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.5560) Lasers and laser optics : Pumping
Keisuke Furuta, Tetsuo Kojima, Shuichi Fujikawa, and Jun-ichi Nishimae, "Diode-pumped 1 kW Q-switched Nd:YAG rod laser with high peak power and high beam quality," Appl. Opt. 44, 4119-4122 (2005)