Closed-Loop Interferometric Fiber-Optic Gyroscope with Unpolarized Light

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2016
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Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií
Abstract
This article deals with utilizing special techniques to improve parameters of interferometric fiber-optic gyroscope (I-FOG) using unexpensive single-mode (SM) fiber and based on all-fiber components. Firstly, it was shown that polarizer must be used to compensate for depolarizing unperfections. Optimization of Er-doped superfluorescent fiber source (SFS) greatly increased SNR of the sensor. Finally, solution for closed-loop operation with slow piezoelectric phase modulator was found yielding significant extension of measurement range as well as its linearity.
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Closed-loop unpolarized fiber-optic gyroscope, all-fiber optical gyro, superfluorescent fiber source, polarizer, Lyot depolarizer, depolarized light modulation, piezoelectric phase modulator
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Proceedings of the 22nd Conference STUDENT EEICT 2016. s. 181-183. ISBN 978-80-214-5350-0
http://www.feec.vutbr.cz/EEICT/
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© Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií
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http://hdl.handle.net/11012/83910
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