Intermediate grade FOG with single mode fiber coil

Ryuji Usui; Aritaka Ohno; Kenichi Okada

doi:10.1117/12.169898

9 March 1994 Intermediate grade fiber optic gyro with single-mode fiber coil

Ryuji Usui, Aritaka Ohno, Kenichi Okada

Proceedings Volume 2070, Fiber Optic and Laser Sensors XI; (1994) https://doi.org/10.1117/12.169898
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

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.

Citation Download Citation

Ryuji Usui, Aritaka Ohno, and Kenichi Okada "Intermediate grade fiber optic gyro with single-mode fiber coil", Proc. SPIE 2070, Fiber Optic and Laser Sensors XI, (9 March 1994); https://doi.org/10.1117/12.169898

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