Research on fine co-focus adjustment method for segmented solar telescope

doi:10.1364/OE.522000

YNAO OpenIR > 天文技术实验室

	Research on fine co-focus adjustment method for segmented solar telescope
	Wang KY(王昆延)1,2 ; Dai YC(戴懿纯)1,3 ; Wang B(王斌)1,3 ; Tan X(谭旭)1,2 ; Yang, Dehua 4; Jin ZY(金振宇)1,3
发表期刊	OPTICS EXPRESS
	2024-04-08
卷号	32 期号:8
DOI	10.1364/OE.522000
产权排序	第1完成单位
收录类别	SCI ; EI
摘要	For segmented telescopes, achieving fine co -focus adjustment is essential for realizing co -phase adjustment and maintenance, which involves adjusting the millimeter -scale piston between segments to fall within the capture range of the co -phase detection system. CGST proposes using a SHWFS for piston detection during the co -focus adjustment stage. However, the residual piston after adjustment exceeds the capture range of the broadband PSF phasing algorithm( +/- 30 mu m ), and the multi -wavelength PSF algorithm requires even higher precision in co -focus adjustment. To improve the co -focus adjustment accuracy of CGST, a fine cofocus adjustment based on cross -calibration is proposed. This method utilizes a high -precision detector to calibrate and fit the measurements from the SHWFS, thereby reducing the impact of atmospheric turbulence and systematic errors on piston measurement accuracy during co -focus adjustment. Simulation results using CGST demonstrate that the proposed method significantly enhances adjustment accuracy compared to the SHWFS detection method. Additionally, the residual piston after fine co -focus adjustment using this method falls within the capture range of the multi -wavelength PSF algorithm. To verify the feasibility of this method, experiments were conducted on an 800mm ring segmented mirror system, successfully achieving fine co -focus adjustment where the remaining piston of all segments fell within +/- 15 mu m . (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
资助项目	National Natural Science Foundation of China[12273109]; Yunnan Province Young and Middle-aged Academic and Technical Leaders Reserve Talents Project[202405AC350004]; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]; Yunnan Revitalization Talent Support Program[202305AS350029]; Yunnan Revitalization Talent Support Program[202305AT350005]; Yunnan Provincial Science and Technology Department[202103AD150013]
项目资助者	National Natural Science Foundation of China[12273109] ; Yunnan Province Young and Middle-aged Academic and Technical Leaders Reserve Talents Project[202405AC350004] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] ; Yunnan Revitalization Talent Support Program[202305AS350029, 202305AT350005] ; Yunnan Provincial Science and Technology Department[202103AD150013]
语种	英语
学科领域	物理学 ; 光学 ; 天文学 ; 天文学其他学科
文章类型	Article
出版者	Optica Publishing Group
出版地	2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
ISSN	1094-4087
URL	查看原文
WOS记录号	WOS:001215309000002
WOS研究方向	Optics
WOS类目	Optics
EI入藏号	20241515909035
EI主题词	Pistons
EI分类号	443.1 Atmospheric Properties - 612.1.1 Internal Combustion Engine Components - 631.1 Fluid Flow, General
引用统计
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27059
专题	天文技术实验室
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 2.University of Chinese Academy of Sciences, Beijing 100049, China; 3.Yunnan Key Laboratory of Solar Physics and Space Science, 650216, China; 4.Nanjing Institute of Astronomical Optics and Technology, Chinese Academy of Sciences, Nanjing 210042, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Wang KY,Dai YC,Wang B,et al. Research on fine co-focus adjustment method for segmented solar telescope[J]. OPTICS EXPRESS,2024,32(8).
APA	王昆延,戴懿纯,王斌,谭旭,Yang, Dehua,&金振宇.(2024).Research on fine co-focus adjustment method for segmented solar telescope.OPTICS EXPRESS,32(8).
MLA	王昆延,et al."Research on fine co-focus adjustment method for segmented solar telescope".OPTICS EXPRESS 32.8(2024).

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