Using an Auxiliary Mach–Zehnder Interferometer to Compensate for the Influence of Laser-Frequency-Drift in Φ-OTDR

Using an Auxiliary Mach–Zehnder Interferometer to Compensate for the Influence of Laser-Frequency-Drift in Φ-OTDR

In phase-sensitive optical time-domain reflectometry (Φ-OTDR), the frequency drift of the laser source induces the fluctuation of signal, which limits the measurement capacity of Φ-OTDR for low frequency severely. In this paper, we propose a method to compensate for the influen...

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Bibliographic Details
Main Authors: Quan Yuan, Feng Wang, Tao Liu, Yixin Zhang, Xuping Zhang
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Photonics Journal
Subjects:
Optical fiber sensor
frequency-drift
phase-sensitive optical time domain reflectometry
vibration measurement
Online Access:https://ieeexplore.ieee.org/document/8556000/

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