Sagnac Effect Compensations and Locked States in a Ring Laser Gyroscope

Frequency lock-in-induced deadband phenomena are major problems of ring laser gyroscopes (RLGs), which deteriorate linear responses to changes in the applied rotation rate. In this work, the frequency lock-in phenomenon occurring in the RLG was successfully investigated by compensating for the Sagna...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-02, Vol.23 (3), p.1718
Main Authors: Choi, Woo-Seok, Shim, Kyu-Min, Chong, Kyung-Ho, An, Jun-Eon, Kim, Cheon-Joong, Park, Byung-Yoon
Format: Article
Language:English
Subjects:
Analysis
deadband
Error analysis
Error functions
Fiber optics
Frequency analysis
frequency lock-in
Lasers
Light
Microelectromechanical systems
Optical gyroscopes
ring laser gyroscope
Ring laser gyroscopes
Sagnac effect
Sagnac effect compensation
Sagnac interferometry
Sensors
Velocity
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Summary:Frequency lock-in-induced deadband phenomena are major problems of ring laser gyroscopes (RLGs), which deteriorate linear responses to changes in the applied rotation rate. In this work, the frequency lock-in phenomenon occurring in the RLG was successfully investigated by compensating for the Sagnac effect through frequency analysis using a newly defined error function. Integrative and generalized viewpoints from the analyzed results provide new possibilities for relevant performance improvements of optical gyroscopes, as well as a deeper understanding of locked states in principle aspects.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23031718