Chinese Journal of Lasers, Volume. 46, Issue 9, 901008(2019)
Cryogenic Liquid-Cooled Yb∶YAG Bulk Amplifier
An innovative laser amplifier architecture based on cryogenically cooled Yb∶YAG bulk is developed for high-power laser application. The Yb∶YAG bulk with triangular-section channels on the side is cooled using a cryogenic liquid to suppress parasitic oscillation in the medium and improve heat management. This architecture realizes high-efficiency energy storage and extraction of the amplifier, and a laser output with energy of 9.4 J, pulse width of 10 ns, repetition frequency of 5 Hz, diffraction limit far field of 3.3 is obtained, when high energy storage and extraction efficiency of the amplifier are realized. It provides a useful reference for the subsequent design of Yb∶YAG laser amplifier with large energy.
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Yan Xiongwei, Jiang Xingying, Wang Zhenguo, Zheng Jiangang, Li Min, Xiao Kaibo. Cryogenic Liquid-Cooled Yb∶YAG Bulk Amplifier[J]. Chinese Journal of Lasers, 2019, 46(9): 901008
Category: laser devices and laser physics
Received: Apr. 9, 2019
Accepted: --
Published Online: Sep. 10, 2019
The Author Email: Jiangang Zheng (zjg8861@gmail.com)