An embedded pressure sensor based on polarization maintaining photonic crystal fiber

Yuanhong Yang, Juan Li, Weiqian Duan, Xing Zhang, Wei Jin, Mingwei Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)


An embedded optical fiber pressure sensor was made by sandwiching a piece of polarization maintaining photonic crystal fiber (PM-PCF) between two polymer foils. The excess birefringence induced by the transverse pressure applied in different directions with respect to the birefringent axes of the PM-PCF was numerically calculated and the slow axis was identified to be the most sensitive direction. An experimental test was carried out by incorporating the embedded PM-PCF sensor in a Sagnac interferometer; the output interference fringes were found to shift linearly with the applied transverse pressure with a peak wavelength to pressure sensitivity of 1.764 nm MPa-1, which corresponds to a birefringence to pressure sensitivity of 2.476 × 10-6MPa-1.
Original languageEnglish
Article number094004
JournalMeasurement Science and Technology
Issue number9
Publication statusPublished - 1 Jan 2013

ASJC Scopus subject areas

  • Instrumentation
  • Engineering (miscellaneous)
  • Applied Mathematics


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