分区域主动冷却薄片激光介质的理论和实验研究

母健; 冯国英; 杨火木; 唐淳; 周寿桓

doi:10.7498/aps.62.124204

摘要

针对薄片激光介质抽运和温度分布不均匀的问题, 设计了分区域主动冷却控制薄片激光器. 根据热传导方程, 对端面抽运方形薄片激光介质在均匀冷却和分区域主动冷却两种冷却方式下的温度和应力分布进行了模拟计算. 结果显示: 分区域主动冷却能使薄片介质横向温度分布趋于均匀, 相对于均匀冷却时最大温差的改善率达到了约86%, 介质边缘的张应力转变为低值压应力,有效地抑制了热应力炸裂. 搭建了分区域主动冷却控制实验装置, 并进行了验证实验, 实验结果与模拟结果相符. 为薄片激光器的热管理方式提供了新的思路.

关键词:

Abstract

For the non-uniform pumping and cooling to the thin disk-type laser medium, the district cooling method for thin disk-type laser medium is proposed and examined both experimentally and theoretically. Based on heat conduction equation, the distributions of temperature and stress in end pumping thin disk-type laser medium with evenly cooling and district cooling are calculated. The results show that the tensile stresses on the edge of gain medium with evenly cooling are changed into the low values of compressive stresses for the case of district cooling, and the distribution of temperature in medium with district cooling is much more uniform than with evenly cooling, the ranges of temperature reduces about 86%, and this result is consistent well with the experimental result. The district cooling method could provide a new way of thermal management for thin disk-type laser.

Keywords:

作者及机构信息

1.
四川大学电子信息学院, 成都 610064;

2.
中国工程物理研究院应用电子学研究所, 绵阳 621900;

3.
华北光电技术研究所, 北京 100015

基金项目: 国家自然科学基金重大项目(批准号: 60890200)和国家自然科学基金委员会-中国工程物理研究院联合基金(批准号: 10976017)资助的课题.

Authors and contacts

1.
College of Electronic Information, Sichuan University, Chengdu 610064, China;

2.
Institute of Applied Electronics of China Academy of Engineering Physics, Mianyang 621900, China;

3.
North China Research Institute of Electro-Optics, Beijing 100015, China

Funds: Project supported by the Major Program of the National Natural Science Foundation of China (Grant No. 60890200) and the Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics (Grant No. 10976017).

参考文献

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施引文献

[1]	Giesen A, Speiser J 2007 IEEE J. Sel. Top. Quantum Electron 13 598
[2]	Kemp A J, Valentine G J, Burns D 2004 Prog. Quan. Electron. 28 305
[3]	Speiser J, Giesen A 2007 Advanced Solid-State Photonics Vancouver, Canada, January 28, 2007 pWB9
[4]	Sazegari V, Milani M R J, Jafari A K 2010 Appl. Opt. 49 6910
[5]	Yang H M, Feng G Y, Zhou S H 2011 Opt. Laser Technol. 43 1006
[6]	Zhao J T, Feng G Y, Yang H M, Tang C, Chen N J, Zhou S H 2012 Acta Phys. Sin. 61 084208 (in Chinese) [赵建涛, 冯国英, 杨火木, 唐淳, 陈念江, 周寿桓 2012 61 084208]
[7]	Liao Y, Miller R, Armstrong M R 1999 Opt. Lett. 24 1343
[8]	Mende J, Speiser J, Spindler G, Bohn W L, Giesen A 2008 Proc. SPIE 6871 68710M
[9]	Vetrovec J, Shah R S, Endo T, Koumvakalis A, Masters K, Wooster W, Widen K C, Lassovsky S 2004 Proc. SPIE. 5332 235
[10]	Lu F, Gong M, Xue H, Liu Q, Gong W 2007 Opt. Lasers Eng. 45 43
[11]	Liu Q, Fu X, Ma D, Yan X, He F, Huang L, Gong M, Wang D 2007 Laser Phys. Lett. 4 719
[12]	Liu Q, Gong M L, Pan Y Y, Li C 2004 Acta Phys. Sin. 53 2159 (in Chinese) [柳强, 巩马理, 潘圆圆, 李晨 2004 53 2159]
[13]	Wang J R, Min J C, Song Y Z 2005 Acta Opt. Sin. 25 829 (in Chinese) [王军荣, 闵敬春, 宋耀祖 2005 光学学报 25 829]
[14]	Kemp A J, Millar P, Lubeigt W, Hastie J E, Dawson M D, Burns D 2009 Advanced Solid-State Photonics Denver, Colorado, February 1, 2009 pWE7
[15]	Chen G, Liao L J, Hao W 2007 Fundamentals of Crystal Physics (Beijing: Science Press) (in Chinese) [陈纲, 廖理几, 郝伟 2007 晶体物理学基础 (北京: 科学出版社)]
[16]	Yan Z D, Wang H L 1993 Thermal Stress (Beijing: Higher Education Press) (in Chinese) [严宗达, 王洪礼 1993 热应力 (北京：高等教育出版社)]

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