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Proceedings Paper

Intermediate grade FOG with single mode fiber coil
Author(s): Ryuji Usui; Aritaka Ohno; Kenichi Okada
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Paper Abstract

We have developed a fiber optic gyroscope (FOG) using a single mode fiber (SMF) coil and integrated optics (IO), with intermediate-grade performance (bias stability: 3 degrees/hour 1 (sigma) ). Conventional FOGs, which require higher performance than intermediate grade, need polarization maintaining fiber (PMF), an obstacle to cost reduction because of expense. Our unique technique using depolarized light has made it possible to replace the PMF coil with SMF coil, thus reducing cost. This paper describes the FOG configuration we adopted and the test results of our product models that applied this technique under practical environments (temperature, vibration, and magnetic field). We compare the test results of the products using PMF coil.

Paper Details

Date Published: 9 March 1994
PDF: 12 pages
Proc. SPIE 2070, Fiber Optic and Laser Sensors XI, (9 March 1994); doi: 10.1117/12.169898
Show Author Affiliations
Ryuji Usui, Japan Aviation Electronics Industry, Ltd. (Japan)
Aritaka Ohno, Japan Aviation Electronics Industry, Ltd. (Japan)
Kenichi Okada, Japan Aviation Electronics Industry, Ltd. (Japan)

Published in SPIE Proceedings Vol. 2070:
Fiber Optic and Laser Sensors XI
Ramon P. DePaula, Editor(s)

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