Publication result detail

Distributed fiber-optic sensor system based on phase-sensitive OTDR

NOVOTNÝ, V.; SYSEL, P.; ŠIFTA, R.; MÜNSTER, P.; HORVÁTH, T.; FILKA, M.

Original Title

Distributed fiber-optic sensor system based on phase-sensitive OTDR

English Title

Distributed fiber-optic sensor system based on phase-sensitive OTDR

Type

Paper in proceedings (conference paper)

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.

English 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.

Key words in English

Index Terms - coherent detection, fí-OTDR, optical fiber, scattering, optical sensor.

Authors

NOVOTNÝ, V.; SYSEL, P.; ŠIFTA, R.; MÜNSTER, P.; HORVÁTH, T.; FILKA, M.

Released

23.10.2014

Publisher

Agentura Action M

Location

Praha

ISBN

978-80-86742-39-7

Book

OPTICAL COMMUNICATIONS 2014

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"
}