Methods for optical phase retardation measurement:A review  

作　　者：ZHANG Peng TAN YiDong LIU WeiXin CHEN WenXue 

机构地区：[1]State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instruments,Tsinghua University

出　　处：《Science China(Technological Sciences)》2013年第5期1155-1163,共9页中国科学（技术科学英文版）

基　　金：supported by the Key Program of National Natural Science Foundation of China(Grant No.61036016)

摘　　要：Optical-phase-retardation elements are widely used in many fields.Accurate measurement of their phase retardation is crucial to the practical effect of the element's processing and application.The development and present situation of the methods for optical phase retardation measurement are reviewed,with the wave plate,the most typical phase-retardation element,as an example.The latest research progress in this field is introduced;the principles and characteristics of individual measurement method are summarized and discussed.Three new methods based on laser frequency splitting or laser feedback are presented in detail,in which the laser is not only regarded as a light source but also plays a role of sensor.Moreover,no standard wave plates are needed and arbitrary phase retardation can be measured.Traceability,high precision and high repeatability are achieved as well.

关 键 词：optical measurement phase retardation wave plate frequency splitting laser feedback 

分 类 号：TN606[电子电信—电路与系统]