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Suppression Method of Optical Noises in Resonator-Integrated Optic Gyroscopes
Xuebao Kuai1,2,3, Lei Wei2,3,4, Fuhua Yang2,3,5,6
1School of Microelectronics, University of Science and Technology of China, Hefei 230026, China.
Sensors (Basel, Switzerland)
|April 23, 2022
Summary
This review details noise sources and suppression techniques for resonator-integrated optical gyroscopes. It aims to improve performance beyond theoretical shot-noise limits by addressing backscattering, polarization errors, and more.
Area of Science:
- Photonics and Optical Engineering
- Inertial Navigation Systems
Background:
- Resonator-integrated optical gyroscopes offer miniaturization and high precision.
- Current devices often fall short of theoretical shot-noise limited sensitivity due to various noise factors.
Purpose of the Study:
- To review and analyze noise mechanisms in resonator-integrated optical gyroscopes.
- To discuss and compare effective noise suppression methods.
- To explore novel noise reduction technologies and digital signal processing systems.
Main Methods:
- Comprehensive review of literature on optical gyroscope noise.
- Inductive comparison and collation of various noise suppression techniques.
- Analysis of backscattering, back-reflection, polarization error, Kerr effect, and laser frequency noise.
Main Results:
- Identified key noise sources limiting gyroscope performance.
- Detailed various methods for mitigating noise, including optical and digital signal processing approaches.
- Highlighted new technologies for enhanced noise suppression.
Conclusions:
- Effective noise management is crucial for achieving optimal performance in optical gyroscopes.
- A combination of advanced suppression techniques and digital signal processing can push performance closer to theoretical limits.
- This review provides a consolidated resource for understanding and overcoming noise challenges.
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