输入光偏振态对光纤干涉仪条纹可见度的影响  

The Influence of Input Polarization on Fringe Visibility of Fiber Interferometer

作　　者：李东[1] 黄卫东[1] 曾文锋[1] 易志刚[1] 

机构地区：[1]武汉军械士官学校,湖北武汉430075

出　　处：《激光与红外》2006年第8期703-706,共4页Laser & Infrared

基　　金：国防科技重点实验室基金项目(No.51448040204JB1101)

摘　　要：文章分析了输入光偏振态对光纤Mach-Zehnder干涉仪条纹可见度和相位的影响,并通过实验进行验证。实验中,在干涉仪一干涉臂加入PZT相位调制器,通过示波器直接观测输入光偏振态对干涉仪输出光强波形的影响,并对输出波形变化进行了理论分析,验证了输入光偏振态对干涉仪可见度、相位的影响。In the letter the influence of input polarization on the fringe visibility and phase in fiber Mach-Zehnder interferometer is described, an verification experiment is carried on. In the experiment, a PZT acting as phase-modulation is joined in an arm of interferometer, the change of waveform is qbserved due to different input polarization by oscillograph. The change of waveform is in accordance with the theory analysis. The result of experiment verify the influence of input polarization on visibility and phase.

关 键 词：光纤光学 光纤Mach—Zehnder干涉仪 光纤传感器 偏振光 邦加球 

分 类 号：TH744.3[机械工程—光学工程]