Electrically tunable chirped fiber Bragg gratings by a bulk distributed heater

Z. Chen, Chao Lu, J. H. Ng, T. H. Cheng

Research output: Journal article publicationConference articleAcademic researchpeer-review


We propose a new design for introducing a tunable chirp on a uniform fiber Bragg grating by a controllable temperature gradient. The device consists of an unchirped Bragg grating in a bare fiber that is mounted in a plastic sleeve whose surface is coiled with a length of wire heater. The desired temperature distribution produces a chirp on the grating and at a rate that can be adjusted by varying the current. We have demonstrated an electrically tunable chirped sampled fiber Bragg grating that enables a tuning range of chirp rate up to 0.4nm/cm with an electrical power of 3.3 W.
Original languageEnglish
Pages (from-to)119-121
Number of pages3
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Jan 2001
Externally publishedYes
EventWDM and Photonic Switching Devices for Network Applications II - San Jose, CA, United States
Duration: 25 Jan 200126 Jan 2001


  • Chirp
  • Dispersion
  • Fiber Bragg grating
  • Tunable fiber filter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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