Wide dynamic range experiments on a resonator fiber optic gyro based on closed-loop frequency locking technique  

作　　者：郑永秋 任勇峰 安盼龙 储成群 李小枫 薛晨阳 刘俊 闫树斌 

机构地区：[1]National Key Laboratory for Electronic Measurement Technology, North University of China [2]Key Laboratory of Instrumentation Science and Dynamic Measurement Ministry of Education,North University of China

出　　处：《Chinese Optics Letters》2015年第2期13-16,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant Nos.51225504,91123036,61178058,and 61275166

摘　　要：Wide dynamic range is an important index of the resonator fiber optic gyro（RFOG）. The dynamic range is related to the parameters of the fiber ring resonator（FRR）. After adopting the appropriate parameters, the resonant curve of a FRR and the synchronous demodulated curve are measured. Based on the closed-loop frequency locking technique, the wide dynamic range is obtained, while the linearity is guaranteed. The experiment’s results show that the dynamic range is 480 deg ∕s with less than 1% nonlinearity, and that the bias stability is0.04 deg/s over 2000 s. This Letter demonstrates the scheme for a RFOG with a wide dynamic range.Wide dynamic range is an important index of the resonator fiber optic gyro（RFOG）. The dynamic range is related to the parameters of the fiber ring resonator（FRR）. After adopting the appropriate parameters, the resonant curve of a FRR and the synchronous demodulated curve are measured. Based on the closed-loop frequency locking technique, the wide dynamic range is obtained, while the linearity is guaranteed. The experiment’s results show that the dynamic range is 480 deg ∕s with less than 1% nonlinearity, and that the bias stability is0.04 deg/s over 2000 s. This Letter demonstrates the scheme for a RFOG with a wide dynamic range.

关 键 词：Fiber optics GYROSCOPES Optical resonators Resonators 

分 类 号：TN253[电子电信—物理电子学]