Control method of active optical telescope with multiple mirrors and large field of view

AN qichang; WU Xiaoxia; TANG Jing; LI Hongwen

doi:10.37188/OPE.20243206.0785

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Control method of active optical telescope with multiple mirrors and large field of view

Modern Applied Optics | 更新时间：2024-03-31

- Control method of active optical telescope with multiple mirrors and large field of view
- Optics and Precision Engineering Vol. 32, Issue 6, Pages: 785-791(2024)
- 作者机构：
  
  1.中国科学院长春光学精密机械与物理研究所，吉林长春 130033
  2.中国科学院大学，北京 100039
  3.吉林省智能波前传感与控制重点实验室，吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.37188/OPE.20243206.0785
  CLC： TH751
- Received：28 March 2023，
  
  Revised：19 May 2023，
  
  Published：25 March 2024
- 稿件说明：
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安其昌,吴小霞,唐境等.多镜面大视场主动光学望远镜调控方法[J].光学精密工程,2024,32(06):785-791.

AN Qichang,WU Xiaoxia,TANG Jing,et al.Control method of active optical telescope with multiple mirrors and large field of view[J].Optics and Precision Engineering,2024,32(06):785-791.
安其昌,吴小霞,唐境等.多镜面大视场主动光学望远镜调控方法[J].光学精密工程,2024,32(06):785-791. DOI： 10.37188/OPE.20243206.0785.

AN Qichang,WU Xiaoxia,TANG Jing,et al.Control method of active optical telescope with multiple mirrors and large field of view[J].Optics and Precision Engineering,2024,32(06):785-791. DOI： 10.37188/OPE.20243206.0785.

摘要

为了更好地实现多镜面大视场主动光学望远镜波前像差抑制、提升望远镜探测能力极限，本文基于望远镜视场边缘内置的错位型曲率传感器进行波前感知，并利用功率谱对波前感知结果进行分析，进而基于波前像差的空间频率特征进行调控。首先，基于复光场理论分析了非瞳面对系统波前调控的影响机理。其次，分析了本方法在多镜面大视场主动光学望远镜调控过程中的精度特性。再次，利用桌面实验对多镜面大视场主动光学望远镜调控的可行性进行了验证。最终，波前重建结果与理论波前相关性高于0.85。利用功率谱对各个视场的空间频率特性进行了分析，与单纯使用均方根对多镜面影响敏感度进行分析的方法相比，灵敏度提升了20%。

Abstract

In order to achieve better wavefront aberration suppression and higher detection ability for active telescopes with multiple mirrors and large fields of view， this paper investigated wavefront sensing based on the single-shot curvature sensor at the edge of the telescope's field of view， and realize system control based on analysis of spatial characteristics using power spectrum. Firstly， based on the theory of complex light field， the basic principle and characteristic law of multi surface wavefront control were expressed. Secondly， the accuracy characteristics of this method in the control process of multi mirror large field of view active optical telescopes were analyzed. Thirdly， the feasibility of controlling was verified using desktop experiments. Finally， the correlation between the wavefront reconstruction results and the theoretical wavefront is higher than 0.85. Using power spectrum， the spatial frequency characteristics sensitivity of each field of view are improved by 20%， compared to root mean square.

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references

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