22km distributed strain sensor using Brillouin loss in an optical fibre

X. Bao, David J. Webb, David A. Jackson

Research output: Contribution to journalArticle

Abstract

A novel distributed strain sensor is presented utilizing the strain dependence of the frequency at which the Brillouin loss is maximized in the interaction between a cw laser and a pulsed laser. A strain resolution of 20 µ with a spatial resolution of 5 m has been achieved with a 22 km sensing length.
Original languageEnglish
Pages (from-to)298-302
Number of pages5
JournalOptics Communications
Volume104
Issue number4/6
DOIs
Publication statusPublished - 1 Jan 1994

Keywords

  • distributed strain sensor
  • strain dependence
  • frequency
  • Brillouin loss

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