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

Yongqiu Zheng; Yongfeng Ren; Panlong An; Chengqun Chu; Xiaofeng Li; Chenyang Xue; Jun Liu; Shubin Yan

doi:10.3788/COL201513.020601

Journals >Chinese Optics Letters >Volume 13 >Issue 2 >Page 020601 > Article

Chinese Optics Letters
Vol. 13, Issue 2, 020601 (2015)

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

Yongqiu Zheng^1、2, Yongfeng Ren^1、2, Panlong An^1、2, Chengqun Chu^1、2, Xiaofeng Li^1、2, Chenyang Xue^1、2, Jun Liu^1、2, and Shubin Yan^1、2、*

Author Affiliations

¹National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China

²Key Laboratory of Instrumentation Science and Dynamic Measurement Ministry of Education, North University of China, Taiyuan 030051, China

show less

DOI: 10.3788/COL201513.020601 Cite this Article Set citation alerts

Yongqiu Zheng, Yongfeng Ren, Panlong An, Chengqun Chu, Xiaofeng Li, Chenyang Xue, Jun Liu, Shubin Yan. Wide dynamic range experiments on a resonator fiber optic gyro based on closed-loop frequency locking technique[J]. Chinese Optics Letters, 2015, 13(2): 020601 Copy Citation Text

EndNote(RIS)

BibTex

Plain Text

show less

Abstract

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

\pm 480 \deg / s

with less than 1% nonlinearity, and that the bias stability is 0.04 deg/s over 2000 s. This Letter demonstrates the scheme for a RFOG with a wide dynamic range.