Strain gradient chirp of uniform fiber Bragg grating without shift of central Bragg wavelength

Xinyong Dong, Bai Ou Guan, Shuzhong Yuan, Xiaoyi Dong, Hwa Yaw Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

42 Citations (Scopus)


A novel technique to introduce large linear chirp to an uniform fiber Bragg grating (FBG) is realized by gluing the grating in a slanted direction onto the side face of a simple supported beam. Strain gradient is formed along the length of the grating when the beam is bent, and produces a linear variation in the grating pitch. This permits a tunable chirp without central wavelength shift. The maximum bandwidth of the chirped FBG produced was 11.32 nm.
Original languageEnglish
Pages (from-to)91-95
Number of pages5
JournalOptics Communications
Issue number1-3
Publication statusPublished - 1 Feb 2002


  • Fiber Bragg grating
  • Optical fiber
  • Strain gradient chirp

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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