Bragg grating in polymer optical fibre for strain, bend and temperature sensing

Xianfeng F. Chen, Chi Zhang, David J. Webb, Gang-Ding Peng, Kyriacos Kalli

Research output: Contribution to journalArticlepeer-review

Abstract

We report on a Bragg grating written in an eccentric-cored polymer optical fibre for measurement of strain, bend and temperature. The strain sensitivity achieves 1.13 pm µe -1. The temperature response shows a negative sign with the thermal sensitivity of -50.1 pm ?C-1. For bend sensing, this device exhibits a strong fibre orientational dependence, wide bend curvature range of ±22.7 m-1 and a high bend sensitivity of 63.3 pm/m-1.
Original languageEnglish
Article number094005
JournalMeasurement Science and Technology
Volume21
Issue number9
DOIs
Publication statusPublished - Jul 2010

Keywords

  • Bragg grating
  • polymer optical fibre
  • sensor
  • strain
  • bend
  • temperature

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