基于焦面复制方法的自适应光学系统静态像差校正技术

张天宇; 王钢; 张熙; 窦江培

doi:10.37188/CO.2021-0182

Volume 15 Issue 3

May 2022

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Chinese Optics > 2022 > 15(3): 545-551.

ZHANG Tian-yu, WANG Gang, ZHANG Xi, DOU Jiang-pei. Staticaberration correction technique for adaptive optics system based on focal-plane copy approach[J]. Chinese Optics, 2022, 15(3): 545-551. doi: 10.37188/CO.2021-0182

Citation:

ZHANG Tian-yu, WANG Gang, ZHANG Xi, DOU Jiang-pei. Staticaberration correction technique for adaptive optics system based on focal-plane copy approach[J]. Chinese Optics, 2022, 15(3): 545-551. doi: 10.37188/CO.2021-0182

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Staticaberration correction technique for adaptive optics system based on focal-plane copy approach

doi: 10.37188/CO.2021-0182

ZHANG Tian-yu^{1, 2, 3
,},
WANG Gang^{1, 2
,
,},
ZHANG Xi^{1, 2
,},
DOU Jiang-pei^{1, 2
,}

1.
National Astronomical Observatories / Nanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China
2.
CAS Key Laboratory of Astronomical Optics & Technology, Nanjing Institute of Astronomical Optics & Technology, Nanjing 210042, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds: Supported by the National Natural Science Foundation of China (No. 11827804, No. U2031210, No. 11673042); Special Scientific Research Funds for China′s Manned Space Project Sky Survey Space Telescope (No. CMS-CSST-2021-A11)；Key foreign cooperation projects, the Chinese Academy of Sciences (No. 114A32KYSB20160057); The Strategic Priority Research Program (category A) of the Chinese Academy of Sciences (No. XDA15010300)

More Information

Corresponding author: gwang@niaot.ac.cn
Received Date: 27 Oct 2021
Rev Recd Date: 17 Nov 2021
Accepted Date: 21 Jan 2022

Available Online: 27 Jan 2022

Publish Date: 20 May 2022

Abstract

Abstract

A key factor limiting the performance of Adaptive Optics (AO) systems is the Non-Common Path Aberration (NCPA) caused by the difference between the wavefront sensor path and the science imaging path. Meanwhile, a static aberration will inevitably be introduced in the common path of the AO system. This paper proposes a correction technology based on a copy of the focal-plane Point Spread Function (PSF) to correct static aberration in the scientific imaging path of AO systems. This technology uses the PSF generated by the laser point light source as the reference PSF, and copies that to the science imaging path of the AO system through iterative optimization algorithms. Experimental results show that the Strehl Ratio (SR) increases from the initial 0.312 to 0.995 after correction. This technology can still stably and quickly obtain global optimization results, especially when the initial static aberration of the system is large.
- adaptive optics,
- aberration correction,
- high-contrast imaging

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References(20)

References

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