Chinese Optics Letters, 2018, 16 (12): 121402, Published Online: Dec. 7, 2018   

High-beam-quality, 5.4  J, 5  Hz diode-pumped Nd:YAG active mirror laser amplifier

Author Affiliations
Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract
A high-beam-quality diode-pumped neodymium-doped yttrium aluminum garnet (Nd:YAG) active mirror laser amplifier was demonstrated. The size of the Nd:YAG crystal was 48 mm × 42 mm × 11 mm with 0.6 at.% Nd doped. When the pump energy was 26.8 J and the input energy was 0.3 J, the output pulse energy reached 5.4 J, and the pulse width of 11.3 ns at a 5 Hz repetition rate was obtained for the two gain modules in three-pass amplification, with corresponding optical-to-optical efficiency of 21.2%. The beam quality was measured as Mx2=2.48 and My2=2.43 in horizontal and vertical directions, respectively.

Jing Liu, Lei Li, Xiangchun Shi, Rufeng Chen, Jianlei Wang, Weibiao Chen. High-beam-quality, 5.4  J, 5  Hz diode-pumped Nd:YAG active mirror laser amplifier[J]. Chinese Optics Letters, 2018, 16(12): 121402.

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