光学精密工程2018，Vol.26Issue(4)：749-756,8.DOI:10.3788/OPE.20182604.0749
快速空间测角系统中偏振棱镜消光比的影响
Influence of polarization prism extinction ratio in rapid space angle measuring system
摘要
Abstract
In order to enable a rapid space angle measuring system to realize the required measurement function in a certain translation range,we have investigated the system angle error caused by the non-uniform distribution of the extinction ratio of an incident and azimuth beam after passing through a Glan-Taylor prism.First,the system coordinate model was established.The ray tracing method and Jones matrix description of polarized light were used to deduce the angle error caused by the extinction ratio of the Glan-Taylor prism.Next,considering the nonuniform distribution of the extinction ratio under certain angles of incidence and azimuth,we performed simulations using the MATLAB soft-ware.Finally,experimentally obtained values of the translation of the receiving unit were used to sim-ulate the change in different angles of incidence and azimuth.The influence of the extinction ratio on the accuracy of angle measurement was investigated by comparing the experimental and simulation re-sults.Our studies indicated that the angle of incidence is the primary factor affecting the nonuniform distribution of the extinction ratio,and thereby,the accuracy of the system for a certain range of out-going light.When the azimuth is 90°,the measurement error is small.The measurement error increa-ses with an increase in the angle of incidence for the entire azimuth range.Thus,the validity of the theoretical analysis was verified.Our results will be extremely helpful in optimizing the system struc-ture and improving its performance.关键词
偏振测量/偏振光/方位角测量/消光比/Glan-Taylor棱镜Key words
polarization measurement/polarized light/azimuth measurement/extinction rate/Glan-Taylor prism分类
数理科学引用本文复制引用
李春艳,陆卫国,乔琳..快速空间测角系统中偏振棱镜消光比的影响[J].光学精密工程,2018,26(4):749-756,8.基金项目
陕西省自然科学基金资助项目(No.2016JQ1026) （No.2016JQ1026）
陕西省教育厅专项科研计划资助项目(No.15JK1659) （No.15JK1659）
国家自然科学基金资助项目(No.11604263) （No.11604263）
