Technical ways to improve the precision of closed-loop fiber optic gyros

Shiqin Zhou; Yanji Wu; Lingqin Xia; Yu Peng; Rongkai Sun

doi:10.1117/12.318172

13 August 1998 Technical ways to improve the precision of closed-loop fiber optic gyros

Shiqin Zhou, Yanji Wu, Lingqin Xia, Yu Peng, Rongkai Sun

Proceedings Volume 3555, Optical and Fiber Optic Sensor Systems; (1998) https://doi.org/10.1117/12.318172
Event: Photonics China '98, 1998, Beijing, China

Abstract

This report describes the closed-loop fiber optic gyroscope for aircraft strap-down navigation systems. The closed-loop fiber optic gyroscope consists of a super luminescent diode, a fiber coupler, an integrated optical circuit, a polarizing fiber optic coil, a photoelectric detector and a signal processing circuit. The report describes several technical ways to improve the precision of the closed-loop fiber optic gyro: by improving properties and stability of the integrated optical circuit, utilizing a polarizing fiber optic coil using four grade symmetry twining round technology, improving the properties and stability of the light source, and by using a digital signal processing circuit.

Citation Download Citation

Shiqin Zhou, Yanji Wu, Lingqin Xia, Yu Peng, and Rongkai Sun "Technical ways to improve the precision of closed-loop fiber optic gyros", Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); https://doi.org/10.1117/12.318172

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