Theoretical and experimental analysis of optical gyroscopes based on fiber ring resonators

Yao-ying Liu; Chen-yang Xue; Xiao-wen Cui; Dan-feng Cui; Li-ping Wei; Yong-hua Wang; Yan-na Li

doi:10.1117/12.2071088

18 December 2014 Theoretical and experimental analysis of optical gyroscopes based on fiber ring resonators

Yao-ying Liu, Chen-yang Xue, Xiao-wen Cui, Dan-feng Cui, Li-ping Wei, Yong-hua Wang, Yan-na Li

Proceedings Volume 9295, International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies; 929504 (2014) https://doi.org/10.1117/12.2071088
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

The research on gyroscopes has lasted for a long time, but there is not a thorough analysis of them. In this paper, a detailed theoretical analysis of fiber ring gyroscope and its gyroscope effect were presented, the performance characteristics of optical resonator gyroscope ranging from transmission function Tfrr, Finesse, Q-factor, the gyro sensitivity, signal noise ratio, random walk to dynamic range are all deduced in detail. In addition, a large number of experiments have been done to verify the deduced theoretical results. Simulating the relevance of dQ and turn number of fiber ring, analyzing the frequency difference of two counter transmitted waves (CW and CCW) of the rotated system, make the conclusion that with the increase of turn number of ring, the resonance depth increased while the dQ value decreased, obtain a high sensitivity of 0.21⁰/h, random walk of 0.0035⁰/√h, and Q factor of 8×10⁶. Moreover, in the digital frequency locked dual rotation gyro experiments, obvious step effect was observed. And the experimental line of frequency difference is very agreement with the theoretical line. The research provides a good theoretical and experimental basis for the study of gyroscopes.

Citation Download Citation

Yao-ying Liu, Chen-yang Xue, Xiao-wen Cui, Dan-feng Cui, Li-ping Wei, Yong-hua Wang, and Yan-na Li "Theoretical and experimental analysis of optical gyroscopes based on fiber ring resonators", Proc. SPIE 9295, International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies, 929504 (18 December 2014); https://doi.org/10.1117/12.2071088

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KEYWORDS

Gyroscopes

Resonators

Sensors

Signal to noise ratio

Analytical research

Fiber optic gyroscopes

Laser resonators

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