Directional bend sensor based on asymmetric long period grating in photonic crystal fiber

Long Jin, Wei Jin, Jian Ju

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


A directional bend sensor is demonstrated based on a long period grating fabricated in photonic crystal fiber by introducing geometric deformations in the cladding air holes with a CO2 laser. A bend sensitivity of 2.26 nm/m-1is achieved within the range of -5∼+5 m-1.
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


  • Directional bend sensing
  • Long period grating
  • Photonic crystal fiber

ASJC Scopus subject areas

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

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