Characterization of dynamic strain measurement using reflection spectrum from a fiber Bragg grating

Hang Yin Ling, Kin Tak Lau, Wei Jin, Kok Cheung Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

51 Citations (Scopus)

Abstract

A simulation method for evaluating dynamic strain distribution along a uniform Fiber Bragg Grating (FBG) using its reflection spectrum is presented in this paper. This method is valid for simulating both uniform and non-uniform strain distributions along the FBG under various dynamic conditions. The reflection spectrum from the FBG, subjected to different strain profiles, is simulated based on the Transfer matrix (T-matrix) approach. Three strain profiles, such as a uniform strain, a linear strain gradient and a quadratic strain field, are selected to demonstrate the viability of the proposed method. The importance of the dynamic simulation of the reflection spectrum on the filter design in a FBG dynamic strain sensing system is highlighted.
Original languageEnglish
Pages (from-to)25-30
Number of pages6
JournalOptics Communications
Volume270
Issue number1
DOIs
Publication statusPublished - 1 Feb 2007

Keywords

  • Fibre-Bragg grating
  • Non-uniform strain
  • Reflection spectrum

ASJC Scopus subject areas

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

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