Fiber optic pressure sensor based on polarization-maintaining photonic crystal fiber for downhole application

H. Y. Fu, Chuang Wu, M. L.V. Tse, Lin Zhang, Hwa Yaw Tam, Bai Ou Guan, Chao Lu, Ping Kong Alexander Wai

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

1 Citation (Scopus)


We experimentally demonstrate a high pressure sensor based on a polarization-maintaining photonic crystal fiber (PMPCF) with Sagnac loop configuration for downhole application. The pressure sensitivity of the proposed sensor is 4.21 nm/MPa and 3.27 nm/MPa at ∼1320 nm and ∼1550 nm respectively. High pressure measurement up to 20 MPa has been achieved in our experiment. The sensor also shows reduced temperature sensitivity, making it an ideal candidate for pressure sensing in harsh environment.
Original languageEnglish
Title of host publication20th International Conference on Optical Fibre Sensors
Publication statusPublished - 17 Nov 2009
Event20th International Conference on Optical Fibre Sensors - Edinburgh, United Kingdom
Duration: 5 Oct 20099 Oct 2009


Conference20th International Conference on Optical Fibre Sensors
Country/TerritoryUnited Kingdom


  • Downhole application
  • High pressure sensor
  • Polarization-maintaining photonic crystal fiber
  • Reduced temperature sensitivity

ASJC Scopus subject areas

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

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