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Published on: November 30, 2012
Modeling of Thermal Phase Noise in a Solid Core Photonic Crystal Fiber-Optic Gyroscope
Ningfang Song1, Kun Ma2, Jing Jin3
1Department of Opto-electronics Engineering, Beihang University, Beijing 100191, China. songnf@buaa.edu.cn.
Abstract:
A theoretical model of the thermal phase noise in a square-wave modulated solid core photonic crystal fiber-optic gyroscope has been established, and then verified by measurements. The results demonstrate a good agreement between theory and experiment. The contribution of the thermal phase noise to the random walk coefficient of the gyroscope is derived. A fiber coil with 2.8 km length is used in the experimental solid core photonic crystal fiber-optic gyroscope, showing a random walk coefficient of 9.25 × 10-5 deg/√h.
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