首页 > 论文 > 光学学报 > 38卷 > 6期(pp:628001--1)

离焦型Shack-Hartmann传感器的光斑矩波前重建

Wavefront Reconstruction by a Defocused Shack-Hartmann Sensor Based on Moment of Spot

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

将光斑矩推广应用到离焦型Shack-Hartmann波前传感器中,提出了一种高精度的波前重建方法。针对离焦型Shack-Hartmann波前传感器,不仅提取了每一个微透镜光斑的质心偏移量,而且提取了每一个光斑的二阶矩,用于计算波前的局部斜率和局部曲率。将传统Shack-Hartmann传感器利用波前局部斜率进行波前重构的算法,推广到同时利用波前的局部斜率和局部曲率进行波前重构,并进行了数值模拟研究。数值模拟结果表明:所提波前重建算法可以进行高精度的波前重建。将peaks函数作为输入波前,采用所提波前重建算法得到的波前残差RMS为0.0327λ,小于常规算法的0.0903λ,表明所提算法可以显著地提高波前重建精度。

Abstract

This article presents a hybrid algorithm for improving the accuracy of wavefront reconstruction of a defocused Shack-Hartmann wavefront sensor using the moment method. For a defocused Shack-Hartmann sensor, not only the shift of centroid for each microlens spot but also the second-order moment of each spot are extracted for calculating the local slopes and curvatures of the input wavefront. To improve the accuracy of the wavefront reconstruction, we employ these calculated slopes and curvatures to reconstructure the input wavefront instead of just using the calculated slopes for the conventional Shack-Hartmann sensor. The proposed method is verified by numerical simulations. It shows that the proposed method is useful for wavefront reconstruction with high accuracy. For example, the root mean square value of the residual wavefront error for reconstruciton of the peaks function is 0.0327λ using the proposed method, which is smaller than that, i.e., 0.0903λ, using the conventional method, indicating the proposed method can significantly improve the accuracy of the wavefront reconstruction.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TP212.9

DOI:10.3788/aos201838.0628001

所属栏目:遥感与传感器

基金项目:国家自然科学基金(11373048,11573047)、国家自然科学基金青年科学基金(11403066)

收稿日期:2017-11-27

修改稿日期:2018-01-05

网络出版日期:--

作者单位    点击查看

丰帆:中国科学院国家天文台南京天文光学技术研究所, 江苏 南京 210042中国科学院天文光学技术重点实验室, 江苏 南京 210042中国科学院大学, 北京 100049
李常伟:中国科学院国家天文台南京天文光学技术研究所, 江苏 南京 210042中国科学院天文光学技术重点实验室, 江苏 南京 210042
张思炯:中国科学院国家天文台南京天文光学技术研究所, 江苏 南京 210042中国科学院天文光学技术重点实验室, 江苏 南京 210042

联系人作者:张思炯(sjzhang@niaot.ac.cn)

备注:丰帆(1991-),男,博士研究生,主要从事自适应光学相关技术方面的研究。E-mail: ffeng@niaot.ac.cn

【1】Born M, Wolf E. Principles of optics: electromagnetic theory of propagation, interference and diffraction of light[M]. 7th expanded ed. Cambridge, New York: Cambridge University Press, 1999.

【2】Zhang S R, Li C W, Li S. Understanding optical systems through theory and case studies[M]. Bellingham, Washington: SPIE Press, 2017.

【3】Fienup J R. Phase retrieval algorithms: a comparison[J]. Applied Optics, 1982, 21(15): 2758-2769.

【4】Guo C, Wei C, Tan J B, et al. A review of iterative phase retrieval for measurement and encryption[J]. Optics and Lasers in Engineering, 2017, 89: 2-12.

【5】Chen S, Li C W, Zhang S J. Phase retrieval based on the Talbot effect of Ronchi grating[J]. Acta Optica Sinica, 2018, 38(4): 0405001.
陈升, 李常伟, 张思炯. 基于Ronchi光栅Talbot效应的波前重建[J]. 光学学报, 2018, 38(4): 0405001.

【6】Li C L, Hu X Q. Study on centroid-of-correlation-function approach for estimating sub-image shifts in extended scene Shack-Hartmann wavefront sensor[J]. Acta Optica Sinica, 2017, 37(9): 0928003.
李臣亮, 胡新奇. 计算扩展目标夏克-哈特曼波前传感器子图像偏移量的相关函数质心法研究[J]. 光学学报, 2017, 37(9): 0928003.

【7】Roddier F. Curvature sensing and compensation: a new concept in adaptive optics[J]. Applied Optics, 1988, 27(7): 1223-1225.

【8】Wu C S, Ko J, Davis C C. Determining the phase and amplitude distortion of a wavefront using a plenoptic sensor[J]. Journal of the Optical Society of America A, 2015, 32(5): 964-978.

【9】Ragazzoni R. Pupil plane wavefront sensing with an oscillating prism[J]. Journal of Modern Optics, 1996, 43(2): 289-293.

【10】Shack R V, Platt B C. Production and use of a lenticular hartmann screen[J]. Journal of the Optical Society of America A, 1971, 61(5): 656-661.

【11】Fried D L. Least-square fitting a wavefront distortion estimate to an array of phase-difference measurements[J]. Journal of the Optical Society of America, 1977, 67(3): 370-375.

【12】Rousset G, Lacombe F, Puget P, et al. Status of the VLT Nasmyth adaptive optics system (NAOS)[C]. SPIE, 2000, 4007: 72-81.

【13】Gavel D, Dekany R, Max C, et al. Concept for the Keck Next Generation Adaptive optics system[J]. Perceedings of SPIE, 2008, 7015: 701567.

【14】Baranec C, Dekany R. Study of a MEMS-based Shack-Hartmann wavefront sensor with adjustable pupil sampling for astronomical adaptive optics[J]. Applied Optics, 2008, 47(28): 5155-5162.

【15】Teague M R. Irradiance moments: their propagation and use for unique retrieval of phase[J]. Journal of the Optical Society of America, 1982, 72(9): 1199-1209.

引用该论文

Feng Fan,Li Changwei,Zhang Sijiong. Wavefront Reconstruction by a Defocused Shack-Hartmann Sensor Based on Moment of Spot[J]. Acta Optica Sinica, 2018, 38(6): 0628001

丰帆,李常伟,张思炯. 离焦型Shack-Hartmann传感器的光斑矩波前重建[J]. 光学学报, 2018, 38(6): 0628001

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF