谐振器集成光学陀螺仪中光学噪声的抑制方法。

Kuai Xuebao, Wei Lei, Yang Fuhua, Yan Wei, Li Zhaofeng, Wang Xiaodong

School of Microelectronics, University of Science and Technology of China, Hefei 230026, China.

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.

Sensors (Basel). 2022 Apr 9;22(8):2889. doi: 10.3390/s22082889.

Resonator-integrated optical gyroscopes have advantages such as all-solid-state, on-chip integration, miniaturized structure, and high precision. However, many factors deteriorate the performance and push it far from the shot-noise limited theoretical sensitivity. This paper reviews the mechanisms of various noises and their corresponding suppression methods in resonator-integrated optical gyroscopes, including the backscattering, the back-reflection, the polarization error, the Kerr effect, and the laser frequency noise. Several main noise suppression methods are comprehensively expounded through inductive comparison and reasonable collation. The new noise suppression technology and digital signal processing system are also addressed.

集成谐振器的光学陀螺仪具有全固态、片上集成、结构小型化和高精度等优点。然而，许多因素会降低其性能，使其远远偏离散粒噪声限制的理论灵敏度。本文综述了集成谐振器的光学陀螺仪中各种噪声的机制及其相应的抑制方法，包括背向散射、背反射、偏振误差、克尔效应和激光频率噪声。通过归纳比较和合理整理，全面阐述了几种主要的噪声抑制方法。还介绍了新的噪声抑制技术和数字信号处理系统。