Fabrication of high-rejection low-loss filters by the concatenation of broadly chirped fiber Bragg gratings

Kate Sugden, Lin Zhang, Lorna A. Everall, Ian Bennion

Research output: Contribution to journalConference article


Single- and multiple-bandpass filters with broad, high- rejection stopbands and narrow, low-loss passbands are significant components for fiber networks. Hitherto, this combination of characteristics has proved elusive using in- fiber grating techniques. Here, we report the realization of practical single-passband filters synthesized from concatenated chirped broadband fiber gratings written holographically in a highly photosensitive fiber. Practical, low-loss (< 2 dB), single-passband fiber Bragg grating transmission filters have been fabricated with greater than 30 dB out-of-band rejection over a 25 nm spectral width.

Original languageEnglish
Pages (from-to)22-28
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 23 Jan 1997
Externally publishedYes
EventPhotosensitive Optical Materials and Devices - San Jose, CA, United States
Duration: 12 Feb 199712 Feb 1997



  • Bandpass filter
  • Fibre Bragg grating
  • Light transmission and rejection

ASJC Scopus subject areas

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

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