Inscription of polymer optical fiber Bragg grating at 962 nm and its potential in strain sensing

Zhi Feng Zhang, Chi Zhang, Xiaoming Tao, Guang Feng Wang, Gang Ding Peng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

39 Citations (Scopus)

Abstract

Fiber Bragg grating (FBG) with a 962-nm Bragg wavelength was fabricated in trans-4-stilbenemethanol doped poly(methyl methacrylate) polymer optical fibers (POFs) using a phase mask with 17% zeroth-order diffraction for the inscription wavelength of 325 nm. The effect of zeroth-order diffraction of the phase masks on FGB in POF was first examined by observing micrographs of the gratings. A linear relationship between the fiber axial strain and shift of the FBG was observed up to 6.5% tensile strain with a strain sensitivity of 0.916 pm/με. However, this shift was notably affected by the time-dependent stress relaxation in the fiber, especially when the FBG was subject to a relatively higher strain > 2%.
Original languageEnglish
Article number5557756
Pages (from-to)1562-1564
Number of pages3
JournalIEEE Photonics Technology Letters
Volume22
Issue number21
DOIs
Publication statusPublished - 14 Oct 2010

Keywords

  • Fiber Bragg grating (FBG)
  • fiber grating fabrication
  • measurement of strain
  • polymer optical fiber (POF)

ASJC Scopus subject areas

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

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