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基于压缩调制模式的波前重构

Wavefront Reconstruction Based on Truncated Modulation Modes

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摘要

介绍了一种利用压缩调制模式提高探测频率的波前重构方法。该方法选取与待测光场实部线性相关度较高的Walsh函数项进行系数求解,实现对光场实部的重构;同时,基于空间光强分布对光场虚部进行重构,以避免对Walsh函数乘法定理的依赖和额外调制模式的使用。该方法充分压缩了波前重构过程中所需的调制模式数量,提升了波前采样频率。数值仿真结果表明,该方法能够将波前采样时间缩短为原来的1/12。

Abstract

We propose a wavefront reconstruction method which improves the wavefront sensing frequency, by compressing the number of the modulation functions. The Walsh functions which are highly correlated with the real part of the incident light field are selected, and their coefficients are calculated relatively. Thus, the real part of the light field is reconstructed. Meanwhile, the imaginary part of the optical field is reconstructed based on the light intensity distribution, which avoids the dependence on the multiplication theorem of the Walsh function and the use of the extra modulation modes. The method sufficiently compresses the number of modulation modes greatly in the wavefront reconstruction and improves the wavefront sampling frequency. The numerical simulation results indicate that the sampling time of wavefront can be decreased to 1/12 based on the proposed method.

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中图分类号:O436

DOI:10.3788/aos201838.0901005

所属栏目:大气与海洋光学

基金项目:中科院创新基金(CXJJ16M208)

收稿日期:2018-02-26

修改稿日期:2018-04-13

网络出版日期:2018-05-02

作者单位    点击查看

庞博清:中国科学院自适应光学重点实验室, 四川 成都 610209中国科学院大学, 北京 100049中国科学院光电技术研究所, 四川 成都 610209
王帅:中国科学院自适应光学重点实验室, 四川 成都 610209中国科学院光电技术研究所, 四川 成都 610209
杨平:中国科学院自适应光学重点实验室, 四川 成都 610209中国科学院光电技术研究所, 四川 成都 610209

联系人作者:杨平(pingyang2516@163.com); 庞博清(pangboqing@126.com);

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引用该论文

Pang Boqing,Wang Shuai,Yang Ping. Wavefront Reconstruction Based on Truncated Modulation Modes[J]. Acta Optica Sinica, 2018, 38(9): 0901005

庞博清,王帅,杨平. 基于压缩调制模式的波前重构[J]. 光学学报, 2018, 38(9): 0901005

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