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Title: A Model-based Analysis of Extinction Ratio Effects on Phase-OTDR Distributed Acoustic Sensing System Performance
Authors: Aktasa, Metin
Maral, Hakan
Akgün, Toygar
Keywords: phase-OTDR
extinction ratio
distributed acoustic sensing
Issue Date: 2018
Publisher: Spie-Int Soc Optical Engineering
Source: Conference on Physics and Simulation of Optoelectronic Devices XXVI -- JAN 29-FEB 01, 2018 -- San Francisco, CA
Series/Report no.: Proceedings of SPIE
Abstract: Extinction ratio is an inherent limiting factor that has a direct effect on the detection performance of phase-OTDR based distributed acoustics sensing systems. In this work we present a model based analysis of Rayleigh scattering to simulate the effects of extinction ratio on the received signal under varying signal acquisition scenarios and system parameters. These signal acquisition scenarios are constructed to represent typically observed cases such as multiple vibration sources cluttered around the target vibration source to be detected, continuous wave light sources with center frequency drift, varying fiber optic cable lengths and varying ADC bit resolutions. Results show that an insufficient ER can result in high optical noise floor and effectively hide the effects of elaborate system improvement efforts.
ISBN: 978-1-5106-1538-0
ISSN: 0277-786X
Appears in Collections:Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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