科研之友
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摘要
We propose a double-eigenfrequency-based method to determine the magnitude of the mode-mismatch-induced secondary waves in integrated optic chip in a fibre optic gyroscope (FOG). The experimental results show that the mode-mismatch-induced secondary waves have a magnitude corresponding to power coupling of -91.5dB in the IOC. Based on the obtained secondary waves' magnitude, the effect of secondary wave-induced intensity modulation on the FOG performance is investigated, and the simulation results show that it causes a scale factor error of -0.01ppm for a high-precision FOG (bias stability -0.001 degrees/h).
- 出版日期2017
- 单位北京航空航天大学
