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Thermal characteristics of kW-level conduction-cooled semiconductor laser array
其他题名千瓦级传导冷却半导体激光器阵列热特性
Zhu, Qiwen1,2; Zhang, Pu1; Wu, Dihai1; Nie, Zhiqiang1; Xiong, Lingling1; Liu, Xingsheng1,3
作者部门瞬态光学技术国家重点实验室
2017-10-25
发表期刊Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN10072276
卷号46期号:10
产权排序1
摘要

With the increase in output power of high power semiconductor lasers(HPSLs), thermal management is one of the critical bottlenecks affecting the optical-electrical performance and reliability of HPSLs. Thermal characteristics of a kW-level conduction cooled semiconductor laser array were analyzed based on numerical simulations and experiments. Firstly, transient thermal behavior was studied using finite element method (FEM). There is significant "thermal crosstalk" behavior among the semiconductor laser bars with pulse width greater than 250 μs. It shows thermal resistances along horizontal and vertical directions are 64.7% and 35.3%, respectively, indicating that heat mainly dissipates along horizontal direction. 74.9% of thermal resistance along horizontal direction and 66.5% of thermal resistance along vertical direction origin from CuW layer, which shows that CuW is the most significant factor affecting the efficiency of thermal dissipation. Based on accumulated average temperature method, the simulated temperature differences are 2.13, 1.47, 0.75 at the repetition frequencies of 20, 30 and 40 Hz compared with that at the frequency of 50 Hz. Average junction temperature rises at different repetition frequency have been measured using spectral method, and the temperature differences at the repetition frequencies of 20, 30 and 40 Hz are 2.33, 1.56, 0.78, respectively. The average error is less than 6.85% between experiment results and numerical simulation. It shows that the simulated transient thermal resistance is coincident with the experimental result. © 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.

DOI10.3788/IRLA201746.1005003
收录类别EI ; CSCD
语种中文
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/29456
专题瞬态光学研究室
炬光科技有限公司
作者单位1.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
2.University of Chinese Academy of Sciences, Beijing; 100049, China
3.Focuslight Technologies Co., LTD, Xi'an; 710119, China
推荐引用方式
GB/T 7714
Zhu, Qiwen,Zhang, Pu,Wu, Dihai,et al. Thermal characteristics of kW-level conduction-cooled semiconductor laser array[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2017,46(10).
APA Zhu, Qiwen,Zhang, Pu,Wu, Dihai,Nie, Zhiqiang,Xiong, Lingling,&Liu, Xingsheng.(2017).Thermal characteristics of kW-level conduction-cooled semiconductor laser array.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,46(10).
MLA Zhu, Qiwen,et al."Thermal characteristics of kW-level conduction-cooled semiconductor laser array".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 46.10(2017).
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