Distributed Acoustic Sensor Using a Double Sagnac Interferometer Based on Wavelength Division Multiplexing
We demonstrated a fiber optic distributed acoustic sensor based on a double Sagnac interferometer, using two wavelengths separated by CWDM modules. A mathematical model of signal formation principle, based on a shift in two signals analysis, was described and substantiated mathematically. The depend...
Main Authors: | Andrey A. Zhirnov, Tatyana V. Choban, Konstantin V. Stepanov, Kirill I. Koshelev, Anton O. Chernutsky, Alexey B. Pnev, Valeriy E. Karasik |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2022-04-01
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Series: | Sensors |
Subjects: | |
Online Access: | https://www.mdpi.com/1424-8220/22/7/2772 |
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