• DocumentCode
    748007
  • Title

    All-fibre multichannel flattop filter based on coherent fibre delay line structure

  • Author

    Lai, Yicheng ; Zhang, W. ; Williams, J.A.R.

  • Author_Institution
    Photonics Res. Group, Aston Univ., Birmingham, UK
  • Volume
    38
  • Issue
    10
  • fYear
    2002
  • fDate
    5/9/2002 12:00:00 AM
  • Firstpage
    473
  • Lastpage
    475
  • Abstract
    A technique for implementing an all-fibre multichannel flattop filter based on an optically coherent fibre delay line structure is demonstrated. Using a cascaded high birefringence fibre structure, negative tap weighting is realised in the transversal filter with suppression of optical interference noise. Flattened passbands ~0.35 nm and 0.87 nm with ripples <0.15 dB are obtained
  • Keywords
    birefringence; interference suppression; optical delay lines; optical fibre filters; all-fibre multichannel flattop filter; cascaded high birefringence fibre structure; coherent fibre delay line structure; negative tap weighting; noise suppression; optical interference; transversal filter;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20020339
  • Filename
    1003020