Brillouin scattering based distributed fiber optic temperature sensing for fire detection

Z. Liu, G. Ferrier, X. Bao, X. Zeng, Q. Yu, A. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Scopus citations

Abstract

This paper presents a distributed fiber optic Brillouin scattering investigation, which involves measuring the Brillouin intensity versus time for real-time temperature measurements. This can be applied in practical fire detection schemes through the use of a threshold temperature that corresponds to the maximum Brillouin intensity. In the experiments, a 11 km fiber length was interrogated by 20 ns pulses (2 m spatial resolution) to monitor the temperature variations in a 10 m fiber region. The corresponding theory has confirmed the suitability of real-time intensity monitoring for temperature measurement.

Original languageEnglish
Title of host publicationFire Safety Science - Proceedings of the 7th International Symposium
Pages221-232
Number of pages12
DOIs
StatePublished - 2003
Externally publishedYes
Event7th International Symposium on Fire Safety Science - Worcester, MA, United States
Duration: Jun 16 2002Jun 21 2002

Publication series

NameFire Safety Science
ISSN (Print)1817-4299

Conference

Conference7th International Symposium on Fire Safety Science
Country/TerritoryUnited States
CityWorcester, MA
Period06/16/0206/21/02

Keywords

  • Brillouin scattering
  • Fiber optic temperature sensing
  • Fire detection

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