A compact interferometer insensitive to scanning speed variations  

作　　者：杨庆华 赵葆常 曾晓东 

机构地区：[1]School of Technical Physics,Xidian University [2]Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2013年第2期51-54,共4页中国光学快报（英文版）

摘　　要：A compact moving optical-wedge interferometer （CMOWI） is presented. This device consists of a moving optical wedge （MOW）, a fixed optical wedge （FOW）, a fixed compensating plate, and a beam-splitting cube. The optical path difference （OPD） is calculated and analyzed. The factor between the OPD and the displacement of the MOW is less than 1 if the refractive index and wedge angle of the MOW and FOW are chosen properly. Therefore, the CMOWI is insensitive to scanning speed variations compared with the traditional Michelson interferometer. The CMOWI is compact, small-sized, and suitable for low-resolution Fourier transform spectroscopy.A compact moving optical-wedge interferometer （CMOWI） is presented. This device consists of a moving optical wedge （MOW）, a fixed optical wedge （FOW）, a fixed compensating plate, and a beam-splitting cube. The optical path difference （OPD） is calculated and analyzed. The factor between the OPD and the displacement of the MOW is less than 1 if the refractive index and wedge angle of the MOW and FOW are chosen properly. Therefore, the CMOWI is insensitive to scanning speed variations compared with the traditional Michelson interferometer. The CMOWI is compact, small-sized, and suitable for low-resolution Fourier transform spectroscopy.

关 键 词：Michelson interferometers 

分 类 号：TH744.3[机械工程—光学工程]