Mach-Zehnder光纤干涉仪相位载波调制及解调方案的研究  

Research on Scheme of Phase Carrier Modulation and Demodulation of Mach-Zehnder Optical Fiber Interferometer

作　　者：唐晓琪[1] 唐继[1] 

机构地区：[1]太原理工大学,太原030024

出　　处：《计量学报》2002年第1期10-12,共3页Acta Metrologica Sinica

摘　　要：本文根据Mach Zehnder光纤干涉仪相位调制与双光束干涉测量的特点 ,提出了一种采用相位调制器 (PZT)实现相位载波调制 ,利用贝塞耳函数进行傅里叶分解实现相位调制信号解调的检测方案。理论分析表明 。Based on phase modulation and interference detection of two beams of Mach Zehnder optical fiber interferometer, a detecting scheme to realize phase carrier modulation using PZT phase modulator and to realize demodulation of detected signal using Bessel function and Fourier analysis is proposed. Theoretical analysis shows that the scheme can effectively suppress effect of random interference signal on the measurement accuracy.

关 键 词：Mach-Zehnder光纤干涉仪 相位调制 零差检测 双光束干涉测差 相位载波调制 解调 

分 类 号：TH744.3[机械工程—光学工程]