Michelson干涉型光纤磁场传感器稳定性研究  

Stability of Michelson Interferometric Fiber-Optic Magnetic Sensor

作　　者：薛青[1] 陈建平[1] 张翼[1] 施长海[1] 洪琳[1] 李新碗[1] 

机构地区：[1]上海交通大学"区域光纤通信网与新型光通信系统"国家重点实验室,上海200030

出　　处：《光纤与电缆及其应用技术》2006年第2期19-21,26,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：分析设计了采用45°法拉第旋转反射镜的Michelson干涉型磁场传感器的直流相位跟踪(PTDC)系统,并将其与采用Mach-Zehnder干涉仪的磁场传感系统进行实验比较。结果表明,所设计的直流相位跟踪系统能够很好地解决光纤偏振等引起的随机相位漂移问题。The DC phase-tracking （PTDC） system used for fiber-optic interferometric magnetic sensor is designed and analyzed. The sensor is based on the Michelson interferometer employing 45° Faraday Rotator Mirror （FRM）. The experimental results are presented and compared with those of the magnetic sensor based on Mach-Zehnder interferometer. The results show that the PTDC system can well overcome the problem of polarization-induced random phase drift.

关 键 词：传感器 光纤磁场传感器 直流相位跟踪 Michelson干涉仪 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]