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Proceedings Paper

Analysis of the thermo-optically induced bias drift in resonator fiber optic gyro
Author(s): Kazuo Hotate; Yoichi Kikuchi
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Paper Abstract

Interferometer fiber optic gyros (I-FOGs) have already developed application in various field. TO have higher resolution, however, it is still required to reduce noices. Fluctuation of temperature distribution in sensing fiber coil is one of the dominant noise factor in FOGs. A countermeasure against the drift is specisl coil winding. To get superior performance, however, gyro output compensation with monitored temperature is still needed. In resonatoir FOG (R-FOG), on the other hand, the sensing fiber coil is very short. Then, it is expected that the drift can be reduced. In this paper, we derive an equation describing the drift due to the time variant temperature distribution for R-Fog. By using the equation we calculated the drift both in I-FOG and R-FOG, and compare them. It is shown that the drift in R-fog become much smaller than I-FOG when adopting a special coil winding.

Paper Details

Date Published: 1 March 2001
PDF: 8 pages
Proc. SPIE 4204, Fiber Optic Sensor Technology II, (1 March 2001);
Show Author Affiliations
Kazuo Hotate, Univ. of Tokyo (Japan)
Yoichi Kikuchi, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 4204:
Fiber Optic Sensor Technology II
Brian Culshaw; Michael A. Marcus; Brian Culshaw; James A. Harrington; Michael A. Marcus; Mohammed Saad, Editor(s)

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