Structural design of the water cooling system in a high power end cooled Yb:YAG slab laser

JIANG Xin-ying; ZHENG Jian-gang; YAN Xiong-wei; DUAN Wen-tao; LI Ming-zhong; YU Hai-wu; ZHANG Yong-liang; SHAN Xiao-tong

doi:10.3969/j.issn.1001-3806.2011.05.015

LASER TECHNOLOGY > 2011 > 35(5): 629-631. > DOI: 10.3969/j.issn.1001-3806.2011.05.015

JIANG Xin-ying, ZHENG Jian-gang, YAN Xiong-wei, DUAN Wen-tao, LI Ming-zhong, YU Hai-wu, ZHANG Yong-liang, SHAN Xiao-tong. Structural design of the water cooling system in a high power end cooled Yb:YAG slab laser[J]. LASER TECHNOLOGY, 2011, 35(5): 629-631. DOI: 10.3969/j.issn.1001-3806.2011.05.015

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Structural design of the water cooling system in a high power end cooled Yb:YAG slab laser

Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

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Received Date: November 02, 2010
Revised Date: January 05, 2011
Published Date: September 24, 2011

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Abstract

Abstract

In order to achieve a high cooling efficiency of a high power Yb:YAG laser, its water cooling structural was designed, and the heat transfer effect of this structure was simulated by means of finite element method. Surface coefficient of heat transfer and the temperature distribution on the heat exchange surface were obtained. The results indicate that the distribution of the transfer coefficient and the temperature is uniform distribution in this structure. The coefficient of heat transfer reached 1.8104W/(m2K) and the temperature difference on the surface was less than 1K, which indicate a good heat transfer effect.
- laser technique,
- heat convection,
- high power laser,
- coefficient of heat transfer,
- temperature distribution

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