Fiber-optic acetylene gas sensor based on microstructured optical fiber bragg gratings

Guofeng Yan, Aping Zhang, Guiying Ma, Binhao Wang, Bongkyun Kim, Jooeun Im, Sailing He, Youngjoo Chung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

50 Citations (Scopus)


A fiber-optic acetylene gas sensor based on a microstructured optical fiber Bragg grating (MOFBG) is presented. The microstructured optical fiber (MOF) is specially designed to have a photosensitive core and holey cladding for grating fabrication and gas detection. The micro-holes of the MOF serve as gas cells, in which the acetylene molecules interact with light through the evanescent-waves of guided modes. The MOFBG with a specific period is utilized to not only make the sensor work in reflection mode, but also selectively determine the wavelength and the order of the acting fiber mode for gas sensing. The MOF is prepared by using the well-known stack-and-draw method, and the Bragg gratings are fabricated by using 193-nm laser pulses. Experiments for the use of the MOFBG for acetylene gas detection have been successfully demonstrated.
Original languageEnglish
Article number5983400
Pages (from-to)1588-1590
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number21
Publication statusPublished - 21 Oct 2011
Externally publishedYes


  • Evanescent-wave absorption
  • fiber Bragg gratings (FBGs)
  • microstructured optical fiber (MOF)
  • optical fiber gas sensor

ASJC Scopus subject areas

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


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