Tunable polymer fiber Bragg grating (FBG) inscription: Fabrication of dual-FBG temperature compensated polymer optical fiber strain sensors

Wu Yuan, Alessio Stefani, Ole Bang

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate stable wavelength tunable inscription of polymer optical fiber Bragg gratings (FBGs). By straining the fiber during FBG inscription, we linearly tune the center wavelength over 7 nm with less than 1% strain. Above 1% strain, the tuning curve saturates and we show a maximum tuning of 12 nm with 2.25% strain. We use this inscription method to fabricate a dual-FBG strain sensor in a poly (methyl methacrylate) single-mode microstructured polymer optical fiber and demonstrate temperature compensated strain sensing around 850 nm.

Original languageEnglish (US)
Article number2179927
Pages (from-to)401-403
Number of pages3
JournalIEEE Photonics Technology Letters
Volume24
Issue number5
DOIs
StatePublished - 2012
Externally publishedYes

Keywords

  • Fiber Bragg grating
  • Polymer optical fiber
  • Strain sensing
  • Temperature compensation

ASJC Scopus subject areas

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

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