光纤干涉仪中用于消除偏振衰落的平衡检测技术  

Dual balanced detection technique for eliminating polarization induced signal fading in optical fiber interferometer

作　　者：穆姝慧[1] 俞本立[2] 

机构地区：[1]安徽农业大学理学院,安徽合肥230036 [2]安徽大学物理与材料科学学院光电信息获取与控制教育部重点实验室,安徽合肥230039

出　　处：《大学物理》2008年第11期34-36,共3页College Physics

摘　　要：针对单模光纤干涉仪两臂中光的偏振态受环境变化引起的信号衰落,提出了一种新的消偏振衰落方案.该方案基于单臂光纤干涉仪,通过对干涉仪的信号采用双路光电检测法,经过高通滤波器、平方器,将两路信号相加后,实现了干涉仪信号无偏振衰落输出.其实验结果与理论分析一致.A novel method for eliminating the polarization induced signal fading is presented, which is singlearmed optical fiber interferometer based on the dual balanced detection. A method for eliminating polarization-induced signal fading is analyzed theoretically. The experimental results show that the method is applicable and consistent with theoretical analysis.

关 键 词：光纤干涉仪 偏振引起的信号衰落 双路平衡检测法 

分 类 号：O434.12[机械工程—光学工程]