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NOVOTNÝ, V. SYSEL, P. ŠIFTA, R. MÜNSTER, P. HORVÁTH, T. FILKA, M.
Original Title
Distributed fiber-optic sensor system based on phase-sensitive OTDR
Type
conference paper
Language
English
Original Abstract
A distributed fiber-optic sensor system designed for detection and localization of acoustic vibrations is presented in this paper. In common optical telecommunication networks the scattering phenomena are suppressed rather than used. In the area of distributed fiber-optic sensors it is possible to use many of these linear and non-linear phenomena for sensing purposes, especially the Rayleigh, the Raman and the Brillouin scatterings. In our laboratory we have proposed a sensing system based on the phase-sensitive OTDR (Optical Time Domain Reflectometry) using extremely narrow line-width laser. It is possible to use this system for detection and localization of acoustic vibrations, which can be caused by various external factors like walking people, moving cars, trains, and other objects producing mechanical vibrations that are sensed by an optical fiber. This system could be used for monitoring of long perimeters, national borders, pipelines, seismically active areas etc.
Keywords
Index Terms - coherent detection, fí-OTDR, optical fiber, scattering, optical sensor.
Authors
NOVOTNÝ, V.; SYSEL, P.; ŠIFTA, R.; MÜNSTER, P.; HORVÁTH, T.; FILKA, M.
RIV year
2014
Released
23. 10. 2014
Publisher
Agentura Action M
Location
Praha
ISBN
978-80-86742-39-7
Book
OPTICAL COMMUNICATIONS 2014
Edition number
26
Pages from
20
Pages to
23
Pages count
4
BibTex
@inproceedings{BUT110082, author="Vít {Novotný} and Petr {Sysel} and Radim {Šifta} and Petr {Münster} and Tomáš {Horváth} and Miloslav {Filka}", title="Distributed fiber-optic sensor system based on phase-sensitive OTDR", booktitle="OPTICAL COMMUNICATIONS 2014", year="2014", number="26", pages="20--23", publisher="Agentura Action M", address="Praha", isbn="978-80-86742-39-7" }