Low cost pressure sensor system based on polarization-maintaining photonic crystal fiber operating at 850 nm with CCD interrogator

Lok Hin Cho, H. Y. Fu, Chuang Wu, Chao Lu, Hwa Yaw Tam

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)


The use of polarization-maintaining photonic crystal fiber in a Sagnac interferometer configuration operating at 850 nm shows large response to applied pressure. The sensor demonstrates a 300% improvement in sensitivity than when operating at 1550 nm. Using wavelengths at the 850 nm window enable the use of low-cost CCD-interrogator which also provides a much higher spectrum scanning speed than the much more expensive optical spectrum analyzers.
Original languageEnglish
Title of host publication21st International Conference on Optical Fiber Sensors
Publication statusPublished - 9 Jun 2011
Event21st International Conference on Optical Fiber Sensors - Ottawa, ON, Canada
Duration: 15 May 201119 May 2011


Conference21st International Conference on Optical Fiber Sensors
CityOttawa, ON


  • CCD-interrogator
  • low temperature sensitivity
  • polarization-maintaining photonic crystal fiber
  • Pressure sensor

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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