Adaptive slab laser beam quality improvement using a weighted least-squares reconstruction algorithm

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	Adaptive slab laser beam quality improvement using a weighted least-squares reconstruction algorithm
	Chen, Shanqiu 1,2,3,4; Dong, LiZhi 1; Chen, XiaoJun 1,3,4; Tan, Yi 1,3; Liu, Wenjin 1,3; Wang, Shuai 1,3; Yang, Ping 1,3; Xu, Bing 1,3; Ye, YuTang 2
刊名	APPLIED OPTICS
	2016-04-10
卷号	55 期号:11 页码:3077-3083
ISSN号	1559-128X
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
语种	英语
WOS记录号	WOS:000373617000036
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/3895]
专题	光电技术研究所_光电技术研究所被WoS收录文章
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
推荐引用方式 GB/T 7714	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.
APA	Chen, Shanqiu.,Dong, LiZhi.,Chen, XiaoJun.,Tan, Yi.,Liu, Wenjin.,...&Ye, YuTang.(2016).Adaptive slab laser beam quality improvement using a weighted least-squares reconstruction algorithm.APPLIED OPTICS,55(11),3077-3083.
MLA	Chen, Shanqiu,et al."Adaptive slab laser beam quality improvement using a weighted least-squares reconstruction algorithm".APPLIED OPTICS 55.11(2016):3077-3083.