Calibration of no-common path aberration using multi-channel phase-diversity wave-front sensing

MA Xin-xue; WANG Bin; LI Zheng-wei

doi:10.3788/OPE.20142212.3175

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Calibration of no-common path aberration using multi-channel phase-diversity wave-front sensing

更新时间：2020-08-13

- Calibration of no-common path aberration using multi-channel phase-diversity wave-front sensing
- Optics and Precision Engineering Vol. 22, Issue 12, Pages: 3175-3182(2014)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142212.3175
  CLC： TH703;TH743
- Received：05 March 2013，
  
  Revised：10 April 2013，
  
  Published：25 December 2014
- 稿件说明：
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马鑫雪, 王斌, 李正炜. 相位差异法检测不理想环境下的非共光路像差[J]. 光学精密工程, 2014,22(12): 3175-3182

MA Xin-xue, WANG Bin, LI Zheng-wei. Calibration of no-common path aberration using multi-channel phase-diversity wave-front sensing[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3175-3182
马鑫雪, 王斌, 李正炜. 相位差异法检测不理想环境下的非共光路像差[J]. 光学精密工程, 2014,22(12): 3175-3182 DOI： 10.3788/OPE.20142212.3175.

MA Xin-xue, WANG Bin, LI Zheng-wei. Calibration of no-common path aberration using multi-channel phase-diversity wave-front sensing[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3175-3182 DOI： 10.3788/OPE.20142212.3175.

摘要

设计了1.23 m地基望远镜自适应系统的非共光路标定系统.针对自适应光学系统非共光路像差检测中遇到的问题

构造了离焦量不可测情况下的相位差异法的评价函数.利用多通道约束波前的解集和像差检测与变形镜调整互相迭代最终收敛的办法

弥补了测量条件不理想对像差检测的影响.与双通道相位差异法相比

多通道相位差异法对目标光源形状的容忍力更强

理论上对波前求解精度更高.将该方法应用于1.23 m地基望远镜自适应系统的非共光路静态像差测量中

取得了良好的效果

使光路装调更加方便.通过改变变形镜的初始偏置对测得的像差进行校正

提高了望远镜光学系统的成像质量.

Abstract

A no-common path calibration system was desighned for the Adaptive Optical (AO) system in a 1.23 m ground telescope. To solve some practical problems of no-common path static aberration calibration

the evaluation function for the multi-channel Phase Diversity (PD) processing method was presented for a condition of the defocusinng amount difficult to be measured. Then

a method to use the detected aberration and the modulated deformable mirror to iterate each other for convergence was proposed to make up the effect of nonideal measurement conditions on aberration detection. As compared with two-channel PD processing

the multi-channel PD processing method has stronger tolerance to the forms of target sources and higher accuracy of wavefront solution in theory. The processing method was used to measure the no-common path aberration of the AO system in the 1.23 m telescope. Experimental results demonstrate that the proposed method achieves the higher accuracy of wavefront solution and the aberration has been compensated by using the initial bias of a deformable mirror.Moreover

the whole imaging quality of the optical system is improved effectively.

关键词

Keywords

references

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