Piston sensing for a segmented mirror system via a digital dispersed fringe generated by wavelength tuning

doi:10.1364/OL.385262

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 自适应光学技术研究室（八室）

	Piston sensing for a segmented mirror system via a digital dispersed fringe generated by wavelength tuning
	Zhang, Yongfeng 1,2,3; Xian, Hao 2,3
刊名	Optics Letters
	2020-03-01
卷号	45 期号:5 页码:1051-1054
ISSN号	0146-9592
DOI	10.1364/OL.385262
文献子类	期刊论文
英文摘要	A dispersed fringe sensor (DFS) is a promising approach for sensing the large-scale piston error for segmented mirror systems. In this Letter, a novel method, to the best of our knowledge, for piston sensing based on a digital dispersed fringe (DDF), which is generated by wavelength tuning, is introduced. By continuously changing the wavelength of light passing through the sensor, a collection of far-field spot arrays can be acquired, which are used to construct the DDF with steps of accumulation and stacking in sequence for each inter-segment region. A correlation-based method is applied to extract the encoded piston information from theDDF. The method greatly eases the demanding hardware requirement in traditional DFS and shows high efficiency for the reason that it could simultaneously measure all of the relative piston settings; in addition, it exhibits strong robustness to noise. © 2020 Optical Society of America.
出版地	WASHINGTON
WOS关键词	KECK TELESCOPES
WOS研究方向	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000522833500002
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/10114]
专题	光电技术研究所_自适应光学技术研究室（八室）
作者单位	1.University of Chinese Academy of Sciences, Beijing; 100049, China 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China; 3.Key Laboratory of Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China;
推荐引用方式 GB/T 7714	Zhang, Yongfeng,Xian, Hao. Piston sensing for a segmented mirror system via a digital dispersed fringe generated by wavelength tuning[J]. Optics Letters,2020,45(5):1051-1054.
APA	Zhang, Yongfeng,&Xian, Hao.(2020).Piston sensing for a segmented mirror system via a digital dispersed fringe generated by wavelength tuning.Optics Letters,45(5),1051-1054.
MLA	Zhang, Yongfeng,et al."Piston sensing for a segmented mirror system via a digital dispersed fringe generated by wavelength tuning".Optics Letters 45.5(2020):1051-1054.