13 August 1998 Technical ways to improve the precision of closed-loop fiber optic gyros
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shiqin Zhou, Yanji Wu, Lingqin Xia, Yu Peng, 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); doi: 10.1117/12.318172; https://doi.org/10.1117/12.318172
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