圆起偏器及其对反向光的隔离性能分析

Analysis of Polarization of a Circular Polarizer and the Isolation Performance for the Reflected Light

将 1只线起偏器和 1只 λ/ 4波片组合 ,且使得 λ/ 4波片的快轴与线起偏器出射光的光矢量成 π/ 4,组成圆起偏器。用矩阵方法给出了圆起偏器及其对光的反向隔离的机理 ,并分析了 λ/

The circular polarizer consists of a linear polarizer and a λ/4 retarder,and the included angles of the fax axis of the λ/4 retarder and the X,Y axis are both π/4.With matrx representation,the mechanics of the polarization and isolation for the reflected light on the circular polarizer is given.And this paper also analyses the effect on the device performance of the phase delay error of the two polarized components and the fast axis positioning accuracy of the λ/4 retarder.