Distributed Vibration Sensor Based on Coherent Detection of Phase-OTDR

By Yuelan Lu, T. Zhu, Liang Chen, Xiaoyi Bao. Journal of Lightwave Technology, 2010

720 citations recorded by the source corpus.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/b3d1eb7cde766d2af8da55e22d6e811c2fc2bddf

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In Electrical and Electronic Engineering

Citations in the corpus

Recent Progress in Distributed Fiber Optic Sensors (2012, methodology): “With coherent detection of phase OTDR [54], 2 km sensing length has been demonstrated with 10 m spatial resolution and 1 kHz vibration frequency [55,56] using SMF28 fiber.”
Optical Fiber Distributed Acoustic Sensors: A Review (2021, background): “Bao introduced the heterodyne coherent detection in their DVS to increase the SNR of RBS [38]; Later, Z.”
Phase-sensitive OTDR system based on digital coherent detection (2011, methodology): “As an ideal way for distributed vibration detection, the φ-OTDR has seen great development during the last several years [2-4].”
High Sensitivity Distributed Vibration Sensor Based on Polarization-Maintaining Configurations of Phase-OTDR (2011, methodology): “A 0.13 m straight-line PMF is used to replace the previous 0.25 m long SMF loops, which removed the preknowledge requirement on the vibration event location, and this brings the current sensor configuration a step closer to practical applications for civil structural monitoring.”
Characteristics and Explanations of Interference Fading of a $\phi $ -OTDR With a Multi-Frequency Source (2013, methodology): “Signal processing schemes, such as moving averaging and moving differential were introduced in -OTDR systems to detect distributed vibration [8].”
Distributed Optical Fiber Sensing Based on Rayleigh Scattering (2013, background): “1874-3285/13 2013 Bentham Open Keywords: Optical fiber sensor, distributed sensors, Rayleigh scattering, polarization.”
Fundamentals of Optical Fiber Sensing Schemes Based on Coherent Optical Time Domain Reflectometry: Signal Model Under Static Fiber Conditions (2015, background): “Although the transfer function of the backscatter intensity as a function of fiber strain is highly nonlinear, research continues in its application [19], [20], and it has been used extensively for the detection of third-party interference in, for example, pipelines [21].”