• DocumentCode
    997451
  • Title

    New polarisation-insensitive and robust all-fibre-optic interferometer for FM to AM conversion in optical communication

  • Author

    Mogensen, F. ; Pedersen, Bent ; Nielsen, Brian

  • Author_Institution
    NKT Res. Centre, Brandby, Denmark
  • Volume
    29
  • Issue
    16
  • fYear
    1993
  • Firstpage
    1469
  • Lastpage
    1471
  • Abstract
    A new polarisation-insensitive and robust all-fibre-optic interferometer is outlined and demonstrated. The interferometer consists of a polarisation maintaining (PM) 3 dB coupler and a PM fiber in a simple Sagnac configuration. An insertion loss of 1.2 dB+or-0.1 dB and an extinction ratio better than 28 dB is obtained for an interferometer designed to have a free spectral range (FSR) of 16 GHz. Exploiting the interferometer for FM to AM conversion has high potential for overcoming dispersion limitations in long distance and high-speed optical communication systems.
  • Keywords
    fibre optic sensors; light interferometers; optical communication equipment; optical modulation; 1.1 to 1.3 dB; PM fiber; Sagnac configuration; dispersion limitations; extinction ratio; free spectral range; insertion loss; optical communication; polarisation maintaining; robust all-fibre-optic interferometer;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19930982
  • Filename
    252500