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Proceedings Paper

Experimental study of a fiber optical gyro utilizing a ring resonator and a low-coherence length light source
Author(s): Zhaoyang Hu; Xinyu Ma; Fuying Li; Quan'an Tang; Shiqin Zhou; Yanji Wu
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Paper 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.

Paper Details

Date Published: 9 December 1999
PDF: 8 pages
Proc. SPIE 3860, Fiber Optic Sensor Technology and Applications, (9 December 1999); doi: 10.1117/12.372973
Show Author Affiliations
Zhaoyang Hu, Tsinghua Univ. (China)
Xinyu Ma, Tsinghua Univ. (China)
Fuying Li, Tsinghua Univ. (China)
Quan'an Tang, Tsinghua Univ. (China)
Shiqin Zhou, Beijing Automatic Control Equipment Institute (China)
Yanji Wu, Beijing Automatic Control Equipment Institute (China)


Published in SPIE Proceedings Vol. 3860:
Fiber Optic Sensor Technology and Applications
Michael A. Marcus; Brian Culshaw, Editor(s)

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