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 | 瞬态光学研究室 |
DOI | 10.1117/12.2500701 |
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 | 瞬态光学研究室 |
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 |
推荐引用方式 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. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
A method of designin(1465KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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