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Co-phasing experiment of a segmented mirror using a combined broadband and two-wavelength algorithm
Li, Bin1; Yu, Wen-Hao2,3,4; Chen, Mo2,3,4; Tang, Jin-Long2,4; Xian, Hao2,4
2017
发表期刊Applied Optics
ISSN1559-128X
卷号56期号:32页码:8871-8879
摘要In this paper, a broadband phasing algorithm is combined with a two-wavelength phasing algorithm to detect the piston error of a segmented mirror with the advantages of long range, high precision, and fast detection. Moreover, an active optics co-phasing experimental system of the segmented mirror is built to verify the algorithm’s effectiveness. The segmented mirror consists of four hexagonal segments, with flat-to-flat lengths of 100 mm and radii of curvature of 2000 mm. First, a Shack–Hartmann sensor and piezoelectric actuators are used to finely co-focus the segmented mirror. Then, the broadband phasing algorithm is used to reduce the piston error of the segmented mirror to several micrometers. Finally, the two-wavelength phasing algorithm is used to reduce the piston error of the segmented mirror to zero. The experimental results show that the measurement accuracy is better than 26 nm, and the adjustment accuracy is approximately 55 nm, which demonstrates that the combined algorithm is valuable for segmented-mirror co-phasing measurement and adjustment. © 2017 Optical Society of America.
关键词Errors - Piezoelectric actuators - Pistons
收录类别SCI ; Ei
语种英语
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8779
专题自适应光学技术研究室(八室)
作者单位1.School of Mechanotronics and Vehicle Engineering, East China Jiao-tong University, Nanchang, Jiangxi; 330013, China;
2.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China;
4.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China
推荐引用方式
GB/T 7714
Li, Bin,Yu, Wen-Hao,Chen, Mo,et al. Co-phasing experiment of a segmented mirror using a combined broadband and two-wavelength algorithm[J]. Applied Optics,2017,56(32):8871-8879.
APA Li, Bin,Yu, Wen-Hao,Chen, Mo,Tang, Jin-Long,&Xian, Hao.(2017).Co-phasing experiment of a segmented mirror using a combined broadband and two-wavelength algorithm.Applied Optics,56(32),8871-8879.
MLA Li, Bin,et al."Co-phasing experiment of a segmented mirror using a combined broadband and two-wavelength algorithm".Applied Optics 56.32(2017):8871-8879.
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