• DocumentCode
    795562
  • Title

    Optical amplifier noise-figure reduction using a variable polarisation beam splitter

  • Author

    Pan, J.J. ; Shi, Yuan ; Zhang, Kai

  • Author_Institution
    E-Tek Dynamics Inc., San Francisco, CA, USA
  • Volume
    31
  • Issue
    12
  • fYear
    1995
  • fDate
    6/8/1995 12:00:00 AM
  • Firstpage
    979
  • Lastpage
    980
  • Abstract
    A 3 dB noise figure (NF) reduction of an Er3+-doped fibre amplifier (EDFA) has been experimentally demonstrated using a variable polarisation beam splitter (VPBS). A VPBS controlled by two liquid crystal cells adequately separates half the amplified spontaneous emission (ASE) power of the optical output signal from the optical amplifier and reduces the NF by up to 3 dB. This technique is verified in an EDFA with a measured NF reduction of 3 dB. It yields an EDFA with an NF of 1.2-1.7 dB and gain of 32-34 dB over a wide spectral bandwidth
  • Keywords
    erbium; fibre lasers; laser accessories; laser noise; optical elements; optical fibre polarisation; superradiance; 1.2 to 1.7 dB; 32 to 34 dB; EDFA; Er3+-doped fibre amplifier; amplified spontaneous emission; liquid crystal cells; noise-figure; optical amplifier; variable polarisation beam splitter;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19950686
  • Filename
    390987
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=795562