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Strain dependence of fiber Bragg grating sensors at low temperature

  • Xiaojing Zhang*
  • , Zhanjun Wu
  • , Boming Zhang
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The strain and temperature response of fiber Bragg grating (FBG) sensors has been measured from 123 to 317 K. The wavelength shift of FBGs is found to be linear with applied tensile strain at a constant temperature. On the other hand, their strain sensitivity is found to increase linearly with decreasing temperature. The nonlinear temperature dependence of FBG sensors is confirmed.

Original languageEnglish
Article number054401
JournalOptical Engineering
Volume45
Issue number5
DOIs
StatePublished - May 2006
Externally publishedYes

Keywords

  • Fiber Bragg grating
  • Fiber sensors
  • Low temperature

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