Optimizing microstructured optical fibers for evanescent wave gas sensing

H. L. Ho, Y. L. Hoo, W. Jin, J. Ju, D. N. Wang, R. S. Windeler, Q. Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)


The relationships among the V parameter, confinement loss, relative sensitivity, operating wavelength and structural parameters of microstructured optical fibers for gas sensing applications are investigated theoretically. The V parameter of microstructured optical fibers and the confinement loss requirement set a limit on the maximum sensitivity achievable from index-guiding microstructured fibers. The maximum relative sensitivity is around 30-35%, corresponding to confinement losses of 0.1 dB/m and 1 dB/m, respectively. A novel fiber design to achieve faster sensor response is also proposed and analyzed.
Original languageEnglish
Pages (from-to)289-294
Number of pages6
JournalSensors and Actuators, B: Chemical
Issue number1
Publication statusPublished - 8 Mar 2007


  • Evanescent wave
  • Fiber optic sensor
  • Gas detection
  • Microstructured optical fiber

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry
  • Electrical and Electronic Engineering


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