级联谐振微环慢光效应光学陀螺仪灵敏度分析  

Analysis of Sensitivity of Micro-Optic Gyroscope for Cascade Coupled-Resonator Slow-Light Effect Structures

作　　者：李冬强[1] 李齐良[1] 朱梦云[1] 张真[1] 

机构地区：[1]杭州电子科技大学通信工程学院,杭州310018

出　　处：《电子器件》2016年第4期780-784,共5页Chinese Journal of Electron Devices

基　　金：浙江省自然科学基金项目(Y1110078)

摘　　要：针对光学陀螺仪灵敏度的问题,设计并研究了一个基于慢光效应的光学陀螺仪。采用微环谐振器级联的结构,根据微环谐振腔工作在谐振波长点时,产生慢光效应,使其可以积累较大的相移,能够探测较低的旋转速度,从而提高陀螺仪灵敏度。实验表明光学陀螺仪灵敏度可以通过改变谐振器耦合系数和微环半径而改变,微环半径从0~90μm增加时,灵敏度随之增加。同样的,灵敏度也随着耦合系数的增加而增加,从而优化光学陀螺仪的灵敏度。For the sensitivity of optical gyroscope, The operation of a micro-optic gyroscope （MOG）based on slow- light waveguide is proposed. We use the structure that consists of coupled microring resonators, according to the slow-light effect that occurs in cascaded resonator on the resonant wavelength, a larger phase difference is accumulated on the resonance wavelength, thus MOG can detect a slow angular rate with respect to an inertial frame at high sensitivity. And experiments show that the sensitivity of MOG can be changed by changing the micro-resonator coupling and the radius of the ring, when the microring radius increases from 0 to 90 μm, the sensitivity increases with it. Similarly, the sensitivity also increases with an increase of the coupling coefficient, in order to optimize the sensitivity of the MOG.

关 键 词：光学陀螺仪 慢光效应 级联微环 灵敏度 

分 类 号：V241.558[航空宇航科学与技术—飞行器设计]