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Chin. Opt. Lett.
 Home  List of Issues    Issue 04 , Vol. 16 , 2018    10.3788/COL201816.040601


Resonator integrated optic gyro based on multilevel laser frequency lock-in technique
Ziwen Pan, Chengfei Zhang, Chengfeng Xie, Yongqiu Zheng, Haotian Li, Jun Tang, and Jun Liu
Key Laboratory of Instrumentation Science and Dynamic Measurement of Ministry of Education, [North University of China], Taiyuan 030051, China

Chin. Opt. Lett., 2018, 16(04): pp.040601

DOI:10.3788/COL201816.040601
Topic:Fiber optics and optical communication
Keywords(OCIS Code): 060.2800  120.5790  140.5960  280.4788  

Abstract
The resonator integrated optic gyros (RIOGs) based on the Sagnac effect have gained extensive attention in navigation and guidance systems due to their predominant advantages: high theoretical accuracy and simple integration. However, the problems of losing lock and low lock-in accuracy are the bottlenecks, which restrict the development of digital RIOGs. Therefore, a multilevel laser frequency lock-in technique has been proposed in this Letter to address these problems. The experimental results show that lock-in accuracy can be improved one order higher and without losing lock in a variable temperature environment. Then, a digital miniaturized RIOG prototype (18 cm?×?18 cm?×?20 cm) has been produced, and long-term (1 h) bias stability of 26.6 deg/h is successfully demonstrated.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2017/10/11
Accepted:2018/2/1
Posted online:2018/3/26

Get Citation: Ziwen Pan, Chengfei Zhang, Chengfeng Xie, Yongqiu Zheng, Haotian Li, Jun Tang, and Jun Liu, "Resonator integrated optic gyro based on multilevel laser frequency lock-in technique," Chin. Opt. Lett. 16(04), 040601(2018)

Note: This work was supported by the National Natural Science Foundation of China (Nos. 51635011, 61640601, 61571406, and 51727808), the Outstanding Youth Talents Program of Shanxi Province (No. 2016002), the Science and Technology on Electronic Test & Measurement Laboratory (No. 11010311), and the Shanxi “1331 KSC”.



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