Departure from linearity of fibre Bragg grating temperature coefficients

GMH Flockhart, WN MacPherson, JS Barton, JDC Jones, L Zhang, I Bennion

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

20 Citations (Scopus)


We have measured the Bragg wavelength shift of three gratings from -30degreesC to +80degreesC. The observed deviation from linearity is a quadratic function of temperature, arising from the non-linear thermo-optic coefficient of silica glass.
Original languageEnglish
Title of host publicationOFS 2002
Subtitle of host publication15th Optical Fiber Sensors Conference Technical Digest
Place of PublicationNew York
Number of pages4
ISBN (Print)0780372891
Publication statusPublished - 2002
Event15th Optical Fiber Sensors Conference - Portland, United States
Duration: 6 May 200210 May 2002


Conference15th Optical Fiber Sensors Conference
CountryUnited States


  • sensors
  • glasses
  • strain
  • linearity
  • fibre Bragg grating
  • temperature coefficients

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