Novel signal-processing techniques for low-cost fiber optic gyroscopes (FOGs)

Wojciech Klimkiewicz; Jeffrey L. Duryea

doi:10.1117/12.191846

1 November 1994 Novel signal-processing techniques for low-cost fiber optic gyroscopes (FOGs)

Wojciech Klimkiewicz, Jeffrey L. Duryea

Proceedings Volume 2292, Fiber Optic and Laser Sensors XII; (1994) https://doi.org/10.1117/12.191846
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The paper describes three examples of low-cost, low-power signal processing techniques used in building prototypes of low/medium performance Fiber Optic Gyroscopes. The prototypes were developed at the Mercer Engineering Research Center, in an ongoing U.S. Air Force funded effort to develop a Fiber Optic Gyroscope replacement for existing mechanical rate gyroscopes used in a wide variety of applications. The novelty of applied methods consists of a very small number of elements used, and a very low power consumed by the signal processing electronics. The noise suppression was achieved due to small number of elements, synchronous homodyne detection scheme, and resonance amplifier/filter techniques. The Sagnac interferometric optics with 50/50 splitter/combiner, and 2 X 2 directional coupler, and optical phase shifter at 820 nm and 1500 nm wavelengths have been developed as a part of this ongoing effort and were used in the experiments.

Citation Download Citation

Wojciech Klimkiewicz and Jeffrey L. Duryea "Novel signal-processing techniques for low-cost fiber optic gyroscopes (FOGs)", Proc. SPIE 2292, Fiber Optic and Laser Sensors XII, (1 November 1994); https://doi.org/10.1117/12.191846

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