Differential-mode and common-mode measurements based on fiber-optic gyroscopes

Yanjun Chen; Lanxin Zhu; Wenbo Wang; Huimin Huang; Yan He; Fangshuo Shi; Xiangdong Ma; Zhengbin Li

doi:10.1117/12.3003930

18 December 2023 Differential-mode and common-mode measurements based on fiber-optic gyroscopes

Yanjun Chen, Lanxin Zhu, Wenbo Wang, Huimin Huang, Yan He, Fangshuo Shi, Xiangdong Ma, Zhengbin Li

Proceedings Volume 12968, AOPC 2023: Optic Fiber Gyro ; 129680M (2023) https://doi.org/10.1117/12.3003930
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

We propose and implement a source-sharing configuration based on fiber-optic gyroscopes for differential-mode and common-mode measurements. By adopting suitable values of the modulation parameters, the effect of relative intensity noise and thermal phase noise can be suppressed. Experimental results show that this configuration can achieve a maximum of 5.78 times self-noise suppression. We also show that the deviation of the modulation frequency from the eigenfrequency or its harmonics leads to an increase of the self-noise level. A deviation of 400 Hz can lead to a degradation of the self-noise level by up to 2.38 times. Finally, we prove the ability of suppression the environmental disturbance through an observation with the effect of natural vibrations.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yanjun Chen, Lanxin Zhu, Wenbo Wang, Huimin Huang, Yan He, Fangshuo Shi, Xiangdong Ma, and Zhengbin Li "Differential-mode and common-mode measurements based on fiber-optic gyroscopes", Proc. SPIE 12968, AOPC 2023: Optic Fiber Gyro , 129680M (18 December 2023); https://doi.org/10.1117/12.3003930

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KEYWORDS

Fiber optics

Gyroscopes

Fiber optic gyroscopes

Fiber optics tests

Modulation frequency

Relative intensity noise

Modulation

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