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A method of designing water-cooled horizontal array diode lasers for uniform junction temperature
Wu, Di-Hai1,3; Zah, Chung-En2; Liu, Xingsheng1,2
2018
会议名称Semiconductor Lasers and Applications VIII 2018
会议录名称Semiconductor Lasers and Applications VIII
卷号10812
会议日期2018-10-12
会议地点Beijing, China
出版者SPIE
产权排序1
摘要High power water-cooled horizontal array diode lasers are critical components in laser cutting systems for the compact line beam shape. Because of heat spreading effect of heatsink and thermal crosstalk effect among the laser bars, local thermal resistance for each bar is different, leading to unhomogeneous output power for each bar and non-uniform intensity distribution for laser line beam. In this paper, heat transfer and pressure drop as function of water flow rate in a single bent microchannel is firstly studied by computational fluid dynamics. For reaching same local thermal resistance, numerical simulation is used to determine local heat transfer coefficient (HTC) distribution for microchannels within the horizontal array heatsink. The water inlet or outlet structure respectively in the upstream and downstream of distributed channels is designed to compensate the distributed pressure drop so that each flow path from inlet to outlet has same pressure drop. This work gave the basic thermal design rule for horizontal array diode lasers to reach uniform junction temperature. © 2018 SPIE.
作者部门瞬态光学技术国家重点实验室
DOI10.1117/12.2500701
收录类别EI
ISBN号9781510622227
语种英语
ISSN号0277786X;1996759X
EI入藏号20185106258802
引用统计
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/31117
专题瞬态光学技术国家重点实验室
通讯作者Liu, Xingsheng
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, No. 17 Xinxi Road, Xi'an High-Tech Zone, Xi'an, Shaanxi; 710119, China;
2.Focuslight Technologies Inc., 56 Zhangba 6th Road, Xi'an High-Tech Zone, Xi'an, Shaanxi; 710077, China;
3.University of Chinese Academy of Sciences, No. 19 Yuquan Road, Shijingshan District, Beijing; 100049, China
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GB/T 7714
Wu, Di-Hai,Zah, Chung-En,Liu, Xingsheng. A method of designing water-cooled horizontal array diode lasers for uniform junction temperature[C]:SPIE,2018.
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