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题名:
Adaptive slab laser beam quality improvement using a weighted least-squares reconstruction algorithm
作者: Chen, Shanqiu1,2,3,4; Dong, LiZhi1; Chen, XiaoJun1,3,4; Tan, Yi1,3; Liu, Wenjin1,3; Wang, Shuai1,3; Yang, Ping1,3; Xu, Bing1,3; Ye, YuTang2
刊名: APPLIED OPTICS
出版日期: 2016-04-10
卷号: 55, 期号:11, 页码:3077-3083
DOI: 10.1364/AO.55.003077
文章类型: Article
英文摘要: Adaptive optics is an important technology for improving beam quality in solid-state slab lasers. However, there are uncorrectable aberrations in partial areas of the beam. In the criterion of the conventional least-squares reconstruction method, it makes the zones with small aberrations nonsensitive and hinders this zone from being further corrected. In this paper, a weighted least-squares reconstruction method is proposed to improve the relative sensitivity of zones with small aberrations and to further improve beam quality. Relatively small weights are applied to the zones with large residual aberrations. Comparisons of results show that peak intensity in the far field improved from 1242 analog digital units (ADU) to 2248 ADU, and beam quality beta improved from 2.5 to 2.0. This indicates the weighted least-squares method has better performance than the least-squares reconstruction method when there are large zonal uncorrectable aberrations in the slab laser system. (C) 2016 Optical Society of America
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: POLYNOMIALS
收录类别: SCI
项目资助者: National Natural Science Foundation of China (NSFC)(61308082) ; National Major Scientific Research Equipment Project(ZDYZ2013-2)
语种: 英语
WOS记录号: WOS:000373617000036
ISSN号: 1559-128X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3895
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
2.Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 611731, Peoples R China
3.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
4.Univ Chinese Acad Sci, Beijing 10094, Peoples R China

Recommended Citation:
Chen, Shanqiu,Dong, LiZhi,Chen, XiaoJun,et al. Adaptive slab laser beam quality improvement using a weighted least-squares reconstruction algorithm[J]. APPLIED OPTICS,2016,55(11):3077-3083.
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