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题名:
Automatic online laser resonator alignment based on machine vision: Analysis
作者: Dong, Lizhi1; Liu, Wenjin1; Yang, Ping1; Wang, Shuai1,2; He, Xing1,2; Xu, Bing1
出版日期: 2015
会议名称: Proceedings of SPIE - The International Society for Optical Engineering
会议日期: 2015
学科分类: Alignment - Computer vision - Laser beams - Laser resonators - Mirrors - Resonators - Social networking (online)
DOI: 10.1117/12.2184585
中文摘要: In order to maintain sufficient performance of a laser, proper alignment of the resonator is very important. We present online laser resonator alignment based on machine vision. In this method, a camera detects the displacement of the laser beam spot on the rear mirror from a reference location, and the displacement of this spot is used to indicate the misalignment of the cavity mirrors. The resonator could be automatically aligned using the displacement as feedback. We give a detailed analysis of the relation between tilt of resonator mirrors and the beam spot location on the rear mirror by calculating the modes of the resonator. Both a stable symmetric confocal resonator and a positive branch confocal unstable resonator are investigated. Calculation results show that the displacement of the beam spot on the rear mirror continuously grows with tilt of the resonator mirrors, and the direction of the displacement can well reflect the direction of the misalignment, indicating that the displacement can effectively denote resonator misalignment. © 2015 SPIE.
英文摘要: In order to maintain sufficient performance of a laser, proper alignment of the resonator is very important. We present online laser resonator alignment based on machine vision. In this method, a camera detects the displacement of the laser beam spot on the rear mirror from a reference location, and the displacement of this spot is used to indicate the misalignment of the cavity mirrors. The resonator could be automatically aligned using the displacement as feedback. We give a detailed analysis of the relation between tilt of resonator mirrors and the beam spot location on the rear mirror by calculating the modes of the resonator. Both a stable symmetric confocal resonator and a positive branch confocal unstable resonator are investigated. Calculation results show that the displacement of the beam spot on the rear mirror continuously grows with tilt of the resonator mirrors, and the direction of the displacement can well reflect the direction of the misalignment, indicating that the displacement can effectively denote resonator misalignment. © 2015 SPIE.
收录类别: SCI ; Ei
语种: 英语
卷号: 9530
ISSN号: 0277-786X
文章类型: 会议论文
页码: 95300L
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7833
Appears in Collections:自适应光学技术研究室(八室)_会议论文

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作者单位: 1. Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, PO Box 350, Chengdu, China
2. University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Dong, Lizhi,Liu, Wenjin,Yang, Ping,et al. Automatic online laser resonator alignment based on machine vision: Analysis[C]. 见:Proceedings of SPIE - The International Society for Optical Engineering. 2015.
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