角锥棱镜的退偏补偿  

Depolarization Compensation of Corner-Cube

作　　者：彭堂超[1] 练文[1] 王寿增[1] PENG Tang-chao;LIAN Wen;WANG Shou-zeng(Huazhong Institute of Electro-Optics-Wuhan National Laboratory for Optoelectronics,Wuhan 430223,China)

机构地区：[1]华中光电技术研究所-武汉光电国家研究中心

出　　处：《光学与光电技术》2019年第6期66-70,76,共6页Optics & Optoelectronic Technology

基　　金：国家重大科学仪器设备开发专项（2013YQ290489）资助项目

摘　　要：角锥棱镜具有将入射光原路返回的特性,但同时也会使反射光的偏振态发生改变,为了减小角锥棱镜退偏效应对光路的影响,需要对经过角锥棱镜的出射光进行退偏补偿。使用琼斯矩阵描述了线偏振光经过角锥棱镜和λ/4波片后的偏振态,通过计算发现:当任意偏振方向的线偏振光经过角锥棱镜反射时,将λ/4波片放置于出射光的通光光路上,并旋转至合适的角度即可保证出射光线为线偏光,且偏振方向与入射光相同。λ/4波片可有效补偿角锥棱镜对线偏振光的退偏效应,使入射光的偏振态仍保持原方向的线偏振状态,可实现角锥棱镜的保偏反射。The cone-cube has the characteristic of returning the incident light to the original path,but at the same time it will also change the polarization state of reflected light. In order to reduce the influence of the depolarization effect of the cone-cube on the light path,it is necessary to compensate the depolarization of the outgoing light passing through the cone-cube. The polarization of the light which passing through the corner-cube and the quarter-wave plate is analyzed by Jones matrices. When the linearly polarized light is reflected by the corner-cube,the reflected light will depolarize. The quarter-wave plate can be used to change the reflected light to be linearly polarized light,and the polarization direction of which is the same as the incident light. The depolarization of corner-cube can be compensated well by the quarter-wave plate.

关 键 词：角锥棱镜 偏振 波片 琼斯矩阵 全反射 

分 类 号：TN243[电子电信—物理电子学]