Setup time of interferometric fiber optic gyroscope

Jianxin Chang; BingKun Qin; Shufen Chen

doi:10.1117/12.385612

9 May 2000 Setup time of interferometric fiber optic gyroscope

Jianxin Chang, BingKun Qin, Shufen Chen

Proceedings Volume 4077, International Conference on Sensors and Control Techniques (ICSC 2000); (2000) https://doi.org/10.1117/12.385612
Event: International Conference on Sensors and Control Techniques (ICSC2000), 2000, Wuhan, China

Abstract

The interferometric fiber optic gyroscope (IFOG) is well known as a sensor for rotation, which is based on Sagnac effect. Compare with traditional mechanical gyroscope, IFOG can be used in higher reliability and longer lifetime, as well as in more severe environment due to its having no revolving component. For these significant advantages, IFOG is often regarded as the most promising instrument in the fiber optic sensor area. However, the theoretical analysis shows that, having no revolving component, IFOG can start working quickly after turning on, which means that the setup time of IFOG is very short. But in real applications, the unstable intensity of the light source during the startup time has greatly delayed the setup time of the IFOG. This disadvantage will extremely restrict the application field of IFOG. This paper analyzes in the main sources associated with IFOG setup time, describes the influences from unstable output power, and also brings out some suggestions to solve the problem. Experiment shows that the influence of the fluctuation has evidently decreased through compensation, which firmly supports the conclusion brought in this paper.

Citation Download Citation

Jianxin Chang, BingKun Qin, and Shufen Chen "Setup time of interferometric fiber optic gyroscope", Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); https://doi.org/10.1117/12.385612

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