Mach-Zehnder光纤干涉仪相位检测方案研究  

Research on Scheme of Phase Detection of Mach-Zehender Optical Fiber Interferometer

作　　者：唐继[1] 

机构地区：[1]太原理工大学,太原030024

出　　处：《传感技术学报》2000年第2期96-100,共5页Chinese Journal of Sensors and Actuators

摘　　要：本文根据Mach-Zehnder光纤干涉仪相位调制及双光束干涉测量的特点，介绍了一种采用相位调制器（PZT）实现相位载波调制，利用Bessel函数进行傅里叶分解实现对相位调制信号解调的检测方案．理论分析表明，该方案能有效地抑止随机干扰信号对测量精度的影响．Based on phase modulation and interference detection of two beams of Mach-Zehnder Optical Fiber Interferometer, we proposed a detecting scheme to realize phase carrier modulation using PZT phase modulator and realize demodulation of detected signal using BesselFourier analysis. Theoretical analysis has proved: the scheme can effectively suppress effect that the random interference signal would give measureing accuracy.

关 键 词：光纤干涉仪 相位调制 零差检测 相位检测 

分 类 号：TH744.3[机械工程—光学工程]