Distributed Acoustic Sensor Using a Double Sagnac Interferometer Based on Wavelength Division Multiplexing

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...

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Bibliographic Details
Main Authors: Chernutsky, A.O (Author), Choban, T.V (Author), Karasik, V.E (Author), Koshelev, K.I (Author), Pnev, A.B (Author), Stepanov, K.V (Author), Zhirnov, A.A (Author)
Format: Article
Language:English
Published: MDPI 2022
Subjects:
A.Fibres
Acoustic devices
Acoustic Sensors
Data handling
disturbance localization
Disturbance localization
fiber optic sensor
Fiber optic sensors
Fiber optics
Fiber-optics
Fibers
Fibre-optic sensor
Interferometers
Sagnac interferometer
sensitivity
Sensitivity
Signal formation
Signals analysis
Two wavelength
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