Research on fine co-focus adjustment method for segmented solar telescope
文献类型：期刊论文
| 作者 | 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, Dehua4; Jin ZY(金振宇)1,3
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| 刊名 | OPTICS EXPRESS
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| 出版日期 | 2024-04-08 |
| 卷号 | 32期号:8 |
| ISSN号 | 1094-4087 |
| DOI | 10.1364/OE.522000 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | 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 |
| 学科主题 | 物理学 ; 光学 ; 天文学 ; 天文学其他学科 |
| URL标识 | 查看原文 |
| 出版地 | 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
| 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] |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:001215309000002 |
| 出版者 | Optica Publishing Group |
| 资助机构 | 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] |
| 源URL | [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 |
| 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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来源：云南天文台
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