Method to improve near-field nonlinearity of a high-power diode laser array on a microchannel cooler
文献类型:期刊论文
作者 | Zhang, Hongyou1,2; Jia, Yangtao3; Cai, Wanshao3; Tao, Chunhua3; Zah, Chung-en3; Liu, Xingsheng1,2,3; Zhang, Hongyou (zhanghy01@focuslight.com) |
刊名 | OPTICAL ENGINEERING |
出版日期 | 2018-03-01 |
卷号 | 57期号:3 |
ISSN号 | 0091-3286 |
关键词 | Thermal Stress Diode Laser Arrays Near-field Nonlinearity Near-field Nonlinearity Along Laser Bar |
DOI | 10.1117/1.OE.57.3.036115 |
产权排序 | 1 |
文献子类 | Article |
英文摘要 | Due to thermal stress, each emitter in a semiconductor laser bar or array is vertically displaced along the p-n junction; the result is that each emitter is not in a line, called near-field nonlinearity. Near-field nonlinearity along a laser bar (also known as "SMILE" effect) degrades the laser beam brightness, which causes an adverse effect on optical coupling and beam shaping. A large SMILE value causes a large divergence angle after collimation and a wider line after collimation and focusing. We simulate the factors affecting the SMILE value of a high-power diode laser array on a microchannel cooler (MCC). According to the simulation results, we have fabricated a series of laser bars bonded on MCCs with lower SMILE value. After simulation and experiment analysis, we found the key factor to affect SMILE is the deformation of the thin MCC because of the distribution of strain and stress in it. We also decreased the SMILE value of 1-cm-wide full bar AuSn bonded on MCCs from 12 to 1 mu m by balancing force on MCC to minimize the deformation. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) |
WOS关键词 | STRESSES |
WOS研究方向 | Optics |
语种 | 英语 |
WOS记录号 | WOS:000429265500046 |
资助机构 | National Natural Science Foundation of China(61334010 ; 61404172) |
源URL | [http://ir.opt.ac.cn/handle/181661/30028] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 西安光学精密机械研究所_炬光科技有限公司 |
通讯作者 | Zhang, Hongyou (zhanghy01@focuslight.com) |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Focuslight Technol Inc, Xian, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Hongyou,Jia, Yangtao,Cai, Wanshao,et al. Method to improve near-field nonlinearity of a high-power diode laser array on a microchannel cooler[J]. OPTICAL ENGINEERING,2018,57(3). |
APA | Zhang, Hongyou.,Jia, Yangtao.,Cai, Wanshao.,Tao, Chunhua.,Zah, Chung-en.,...&Zhang, Hongyou .(2018).Method to improve near-field nonlinearity of a high-power diode laser array on a microchannel cooler.OPTICAL ENGINEERING,57(3). |
MLA | Zhang, Hongyou,et al."Method to improve near-field nonlinearity of a high-power diode laser array on a microchannel cooler".OPTICAL ENGINEERING 57.3(2018). |
入库方式: OAI收割
来源:西安光学精密机械研究所
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