Abstract

A compact quad interferometric fiber optic gyroscope (IFOG) is demonstrated for attitude determination in space application, which combines efficiently multiplexing technology with redundancy technology. Compared with existing typical three-axis and four-axis systems, the IFOG not only reduces greatly the size, weight, power consumption and cost, but also improves dramatically the reliability. Based on the configuration, a multiplexing modulation method and a control method are proposed. A prototype is manufactured, which achieves the angle random walk of less than 0.025 deg/√h and the bias instability of less than 0.15 deg/h. The weight and power consumption of the prototype are 3.5 times and 2.6 times less than the existing system with roughly the same performance, respectively. The fault injection experiments are conducted and verify that the control method is available for fault recovery.

Navigation-grade three-axis resonant fiber-optic gyroscope employing a multiplexed source

Shuang Liu, Junyi Hu, Yuxin Wang, Qingwen Liu, Huilian Ma, and Zuyuan He
Opt. Lett. 48(10) 2639-2642 (2023)

Interferometric fiber-optic gyroscope based on mode-division multiplexing

Yuwen Cao, Xiangdong Ma, Yanjun Chen, Huimin Huang, Lanxin Zhu, Wenbo Wang, Yan He, and Zhengbin Li
Opt. Lett. 48(11) 3067-3070 (2023)

Dual-polarization interferometric fiber optic gyroscope based on a four-port circulator

Yuwen Cao, Lanxin Zhu, Yanjun Chen, Huimin Huang, Wenbo Wang, Yan He, Xiangdong Ma, and Zhengbin Li
Opt. Express 31(9) 14873-14887 (2023)

Optically compensated dual-polarization interferometric fiber-optic gyroscope

Yi Yang, Zinan Wang, and Zhengbin Li
Opt. Lett. 37(14) 2841-2843 (2012)

Method for suppressing the bias drift of interferometric all-fiber optic gyroscopes

Xinyue Wang, Changhong He, and Ziyu Wang
Opt. Lett. 36(7) 1191-1193 (2011)