Experimental study of a fiber optical gyro utilizing a ring resonator and a low-coherence length light source

Zhaoyang Hu; Xinyu Ma; Fuying Li; Quan'an Tang; Shiqin Zhou; Yanji Wu

doi:10.1117/12.372973

9 December 1999 Experimental study of a fiber optical gyro utilizing a ring resonator and a low-coherence length light source

Zhaoyang Hu, Xinyu Ma, Fuying Li, Quan'an Tang, Shiqin Zhou, Yanji Wu

Author Affiliations +

Proceedings Volume 3860, Fiber Optic Sensor Technology and Applications; (1999) https://doi.org/10.1117/12.372973
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

A re-entrant fiber optic gyro (RE-FOG) that utilizes a ring resonator (RR) and a low-coherence length light source is designed and demonstrated. A reflector is placed on one end of input/output directional coupler to realize light beams propagating in CW and CCW directions. RE-FOG promises a higher sensitivity than the conventional Sagnac interferometer fiber optic gyro (I-FOG) without the disadvantages of a resonant fiber optic gyro (R-FOG). Theoretical considerations of the sensitivity and the resolution of RE-FOG are discussed. Experimental results (the constant bias of 0.2 deg/h and the variance of random drift rate better than 0.1 deg/h) are also presented.

Citation Download Citation

Zhaoyang Hu, Xinyu Ma, Fuying Li, Quan'an Tang, Shiqin Zhou, and Yanji Wu "Experimental study of a fiber optical gyro utilizing a ring resonator and a low-coherence length light source", Proc. SPIE 3860, Fiber Optic Sensor Technology and Applications, (9 December 1999); https://doi.org/10.1117/12.372973

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