基于双波片的偏振调控和偏振测量技术

发布时间：2018-11-05 07:04

【摘要】：针对双波片偏振调控结构,基于Stokes-Mueller矩阵偏振算法,对双1/4波片和双1/2波片的偏振调控机理作了详尽的理论分析,得出调控偏振态与双波片快轴方向之间的关系,并追迹其在庞加莱球上的运动轨迹.基于双波片调控结构搭建偏振测量系统,根据入射和出射Stokes矢量构建了投影关系矩阵算法,完成了待测元件Mueller矩阵的测量,并分析了波片的快轴方向误差和位相延迟误差对Mueller矩阵测量结果以及对出射偏振态调控精度的影响.分析结果表明:波片的快轴方向误差控制在±2°内,位相延迟误差不大于λ/300时,Mueller矩阵的最大测量误差为0.040 2,波片自身误差对测量结果的影响可以忽略不计;波片自身误差所引起的方位角误差不大于0.16rad时,快轴方向误差引起的椭率角误差最大不超过0.032 rad,位相延迟误差导致的椭率角误差小于0.015 rad,且对偏振度无影响.
[Abstract]:Based on Stokes-Mueller matrix polarization algorithm, the polarization control mechanism of double 1 / 4 wave plate and double 1 / 2 wave plate is analyzed in detail, and the relation between polarization state and fast axis direction of double wave plate is obtained. And trace its trajectory on the Poincare ball. Based on the dual-wave plate control structure, the polarization measurement system is built, and the projection relation matrix algorithm is constructed according to the incident and outgoing Stokes vectors. The measurement of the Mueller matrix of the components under test is completed. The influence of fast axis direction error and phase delay error of wave plate on the measurement results of Mueller matrix and the control accuracy of output polarization state are analyzed. The results show that the maximum measurement error of Mueller matrix is 0.040 2 when the fast axis direction error of the plate is controlled within 卤2 掳and the phase delay error is not greater than 位 / 300.The influence of the plate itself error on the measurement results can be neglected. When the azimuth error caused by the plate's own error is not greater than that of 0.16rad, the maximum ellipticity angle error caused by fast axis direction error is not more than 0.032 rad, phase delay error, and the ellipticity angle error caused by phase delay error is less than 0.015 rad, and has no effect on the degree of polarization.
【作者单位】：长春理工大学光电工程学院;
【基金】：国家自然科学基金(11474037)~~
【分类号】：O436.3

【相似文献】