Long-period grating fabricated using resistive filament heating

Li Yang Shao, Jian Zhao, Xinyong Dong, Hwa Yaw Tam, Chao Lu, Sailing He

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

3 Citations (Scopus)


We fabricate and demonstrate a long-period grating (LPG) by periodically tapering a section of standard single-mode fiber using resistive filament heating. The obtained LPG has a large peak transmission attenuation of-30.31 dB with only 22 periods in a 1.0-cm long optical fiber. Such a LPG exhibits unique characteristics for sensing applications. The bending and strain sensitivities are 1.74 nm m and 1.11 pm/με, respectively. The polarization dependent loss is large, up to 11.65dB, caused by asymmetric index profile in the cross section of the tapered LPG.
Original languageEnglish
Title of host publication19th International Conference on Optical Fibre Sensors
Publication statusPublished - 26 Jun 2008
Event19th International Conference on Optical Fibre Sensors - Perth, WA, Australia
Duration: 15 Apr 200818 Apr 2008


Conference19th International Conference on Optical Fibre Sensors
CityPerth, WA


  • Fiber sensors
  • Long-period gratings
  • Polarization dependent loss
  • Taper

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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