Fiber bragg grating cavity sensor for simultaneous measurement of strain and temperature

Wei Chong Du

Research output: Journal article publicationJournal articleAcademic researchpeer-review

181 Citations (Scopus)


A novel and short (5 mm long) fiber grating based sensor with a fiber grating Fabry-Perot cavity (GFPC) structure was fabricated and tested for simultaneous measurement of strain and temperature. The sensor exhibits unique properties that it possesses two spectral peaks within its main reflection band and the normalized peak power difference, in addition to its peak wavelength shift, changes linearly with strain or temperature. The accuracy of this particular sensor in measuring strain and temperature are estimated to be ±30 μ in a range from 0 to 3000 μ and ±0.4 °C from 20 °C to 60 °C, respectively.
Original languageEnglish
Pages (from-to)105-107
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number1
Publication statusPublished - 1 Dec 1999
Externally publishedYes


  • Fiber bragg grating
  • FP cavity
  • Simultaneous measurement of strain and temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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