Angular accelerometer based on a dual-polarization fiber-optic Sagnac interferometer

作者：Xiangdong Ma, Yanjun Chen, Wenbo Wang, Yuwen Cao, Lanxin Zhu, Huimin Huang, Zhengbin Li · 发表于：Optics Letters · 年份：2023 · DOI：10.1364/ol.481009 · 被引用次数：16 · 研究领域：Geophysics and Sensor Technology、Advanced Fiber Optic Sensors、Seismic Waves and Analysis

High-performance angular accelerometers are essential for precise dynamics control of aircraft, satellites, etc. Here, we propose, for the first time to the best of our knowledge, an angular accelerometer based on a dual-polarization fiber-optic Sagnac interferometer, which exhibits relatively high sensitivity and a broad bandwidth. The experimental results show that the angular accelerometer achieves a flat frequency response in the bandwidth range of 0.01–100 Hz. The sensitivity reaches 6.6 × 10 −8 rad/s 2 / Hz . In addition, the proposed fiber-optic angular accelerometer does not rely on any mechanical structure and has strong environmental adaptability. This research provides a feasible solution for the design and implementation of new high-performance angular accelerometers, which contributes to their development in the fields of inertial navigation and rotational seismology.