弹光调制偏振Stokes参量测量及误差分析  

Measurement of the polarization Stokes parameters based on photoelastic-modulation and its error analysis

作　　者：王立福[1] 王志斌[1,2] 李晓[1,2] 陈友华[1] 张瑞[1] 张鹏飞[1] 

机构地区：[1]中北大学山西省光电信息与仪器工程技术研究中心,太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,太原030051

出　　处：《激光技术》2014年第2期255-259,共5页Laser Technology

基　　金：国家国际科技合作专项基金资助项目(2013DFR10150);国家自然科学基金仪器专项基金资助项目(61127015);山西省国际科技合作计划资助项目(2010081038)

摘　　要：为了更简便地实现Stokes矢量测量,采用一种工作在不同频率上的双弹光调制器,利用它的频率叠加对光进行调制,产生载有被测量的高频调制分量,通过锁相一次得到了适用于所有偏振态测量的4个Stokes分量,且进行了理论分析、仿真验证以及误差分析,即对相位延迟幅度、入射角等因素对测量结果的影响进行了分析。结果表明,该方法实现了只需测量一次便可测出偏振态的所有分量,为进一步工程实现提供了基本的理论支撑。In order to measure Stokes vectors simply and conveniently , a dual-photoelastic-modulator working at different frequencies was adopted to generate high frequency modulation component loaded with the parameters to be measured after light modulation because of the frequency superposition .Four Stokes components suitable for all polarization measurements were obtained once through a phase-locked polarization measurement .After theoretical analysis , simulation verification and error analysis , the effects of phase delay and incidence angle on the measurement results were studied .The results show that all the measured polarization components can be obtained with only one measurement and the method provides theoretical support for further engineering implementation .

关 键 词：光谱学 双弹光调制器 Stokes矢量 偏振 锁相 

分 类 号：O436.3[机械工程—光学工程]