Fiber Optic Gyroscope Using An Eight-Component LiNbO3 Integrated Optic Circuit

W. J. Minford; F. T. Stone; B. R. Youmans; R. K. Bartman

doi:10.1117/12.963047

13 February 1990 Fiber Optic Gyroscope Using An Eight-Component LiNbO₃ Integrated Optic Circuit

W. J. Minford, F. T. Stone, B. R. Youmans, R. K. Bartman

Proceedings Volume 1169, Fiber Optic and Laser Sensors VII; (1990) https://doi.org/10.1117/12.963047
Event: OE/FIBERS '89, 1989, Boston, United States

Abstract

A LiNbO₃ integrated optic circuit (IOC) containing eight optical functions has been successfully incorporated into an interferometric fiber optic gyroscope. The IOC has the minimum configuration' optical functions (a phase modulator, a polarizer, and two beam splitters) and Jet Propulsion Laboratory's novel beat detection circuit2 (a phase modulator, two optical taps, and a beam splitter) which provides a means of directly reading angular position and rotation rate. The optical subsystem consisting of the fiber pigtailed IOC and a sensing coil of 945 meters of AT&T polarization maintaining fiber has a loss of 18.7dB, which includes 9dB due to the architecture and unpolarized source. A random walk coefficient of 7.7 x 10-4 deg/NI-Fir was measured using an edge-emitting LED as the source.

Citation Download Citation

W. J. Minford, F. T. Stone, B. R. Youmans, and R. K. Bartman "Fiber Optic Gyroscope Using An Eight-Component LiNbO₃ Integrated Optic Circuit", Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); https://doi.org/10.1117/12.963047

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