A high efficiency and high peak power laser system with short-pulse and good beam quality has been demonstrated by using a master oscillator power amplifier with two-pass amplification configuration. The master oscillator, end-pumped with a fiber-coupled laser diode array, provides low power but excellent beam quality pulses, and the amplifier boosts the pulse energy by orders without significant beam quality degradation. Short pulses of 8.5 ns with energy up to 130 mJ and approximatelydiffraction limited beam quality have been demonstrated.
© 2005 Chinese Optics Letters
Zhigang Li, Z. Xiong, Nicholas Moore, Chen Tao, G. C. Lim, Weiling Huang, and Dexiu Huang, "Generation of high energy and good beam quality pulses with a master oscillator power amplifier," Chin. Opt. Lett. 2, 399-401 (2004)