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四分束全Stokes同时偏振成像系统波片快轴装调误差的分析及优化

Alignment Error Analysis and Optimization of Wave Plate Fast Axis in Four-Path Full Stokes Simultaneous Polarization Imaging System

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摘要

建立了包含1/2波片(HWP)和1/4波片(QWP)快轴装调误差的Stokes矢量测量误差方程。分析了波片快轴的装调误差对7种典型基态入射光的Stokes矢量测量精度的影响, 推导了任意入射光Stokes矢量测量误差的表征方法。仿真结果表明, 偏振度越大, 偏振测量误差越大, 选取入射光偏振度为1时的偏振测量精度评估系统性能。提出了一种波片快轴装调误差的优化方法, 当测量矩阵的条件数小于1.84时, 选取0.772/0.228的分束比可使波片快轴装调误差对系统偏振测量精度的影响最小。为满足2%的偏振测量精度, HWP的快轴装调误差应在±0.15°内, QWP的快轴装调误差应在±0.52°内。

Abstract

The Stokes vector measurement error equation including alignment errors of half-wave plate (HWP) and quarter-wave plate (QWP) fast axes is established. The influences of alignment errors of wave plate fast axes on Stokes vector measurement accuracy for seven typical incident lights are analyzed. A calibration method of Stokes vector measurement errors for any incident light is given. The simulation results show that the greater the degree of polarization is, the larger the polarization measurement error is. The polarization measurement accuracy is selected to evaluate the system performance when the degree of polarization for the incident light equals to 1. A method for optimizing the alignment errors of wave-plate fast axes is proposed. When the condition number of the measurement matrix is less than 1.84, the selection of splitting ratio 0.772/0.228 can minimize the influences of alignment errors of wave-plate fast axes on the polarization measurement accuracy. To ensure a polarization measurement accuracy of 2%, the alignment error of HWP fast axis should be within ±0.15° and that of QWP fast axis is within ±0.52°.

Newport宣传-MKS新实验室计划
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中图分类号:O436.3

DOI:10.3788/aos201939.0112002

所属栏目:仪器,测量与计量

基金项目:国家重点研发计划(2016YFE0201400)、卫星应用共性关键技术项目(32-Y20A22-9001-15/17)、高分重大专项项目(GFZX04011805)、中国科学院合肥研究院重点项目(Y73H9P1801)

收稿日期:2018-07-04

修改稿日期:2018-08-04

网络出版日期:2018-09-05

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殷玉龙:中国科学院安徽光学精密机械研究所, 安徽 合肥 230031中国科学技术大学, 安徽 合肥 230026中国科学院通用光学定标与表征技术重点实验室, 安徽 合肥 230031
孙晓兵:中国科学院安徽光学精密机械研究所, 安徽 合肥 230031中国科学院通用光学定标与表征技术重点实验室, 安徽 合肥 230031
宋茂新:中国科学院安徽光学精密机械研究所, 安徽 合肥 230031中国科学院通用光学定标与表征技术重点实验室, 安徽 合肥 230031
陈卫:中国科学院安徽光学精密机械研究所, 安徽 合肥 230031中国科学技术大学, 安徽 合肥 230026中国科学院通用光学定标与表征技术重点实验室, 安徽 合肥 230031

联系人作者:孙晓兵(xbsun@aiofm.ac.cn); 殷玉龙(yinyulong_yyl@163.com);

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引用该论文

Yin Yulong,Sun Xiaobing,Song Maoxin,Chen Wei. Alignment Error Analysis and Optimization of Wave Plate Fast Axis in Four-Path Full Stokes Simultaneous Polarization Imaging System[J]. Acta Optica Sinica, 2019, 39(1): 0112002

殷玉龙,孙晓兵,宋茂新,陈卫. 四分束全Stokes同时偏振成像系统波片快轴装调误差的分析及优化[J]. 光学学报, 2019, 39(1): 0112002

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