谐振式光学陀螺小型化光源频率跟踪锁定研究  

Research on frequency tracking and locking for resonant optical gyro based on minimization of light source

作　　者：马迎建[1] 唐瑶[1] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《传感器与微系统》2012年第1期35-37,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(50875015)

摘　　要：谐振式光学陀螺是一种基于Sagnac效应的高精度新型角速度传感器,通过检测谐振腔顺逆时针两路光路的谐振频差得到角速度。谐振式光学陀螺的小型化关键是实现光源的小型化。基于半导体窄线宽小型化光源调制方式的特点,分析了谐振谷的频率跟踪锁定问题,实现了陀螺的频率跟踪控制。Resonant optical gyro is a new high-precision angular rotation velocity sensor based on Sagnac effect, the angular rotation velocity is measured through the detection of the resonant frequency difference between the clockwise and the counter-clockwise light path in the resonator. It is a key process to the minimization of the gyro that light source realize the minimization. Based on the modulation narrow line-width and minimization of light source of the semiconductor, the frequency tracking and locking for the resonator valley is analyzed, the frequency tracking control of the gyro is achieved.

关 键 词：谐振式光学陀螺 频率跟踪锁定 调制 

分 类 号：TH741[机械工程—光学工程]