• DocumentCode
    27529
  • Title

    Improvement of differential modal gain in few-mode fibre amplifier by employing ring-core erbium-doped fibre

  • Author

    Ono, H. ; Hosokawa, T. ; Ichii, K. ; Matsuo, Shoichiro ; Yamada, Makoto

  • Author_Institution
    NTT Device Technol. Labs., NTT Corp., Atsugi, Japan
  • Volume
    51
  • Issue
    2
  • fYear
    2015
  • fDate
    1 22 2015
  • Firstpage
    172
  • Lastpage
    173
  • Abstract
    The differential modal gain (DMG) in a few-mode erbium-doped fibre amplifier (FM-EDFA) is successfully improved by employing a ring-core FM erbium-doped fibre (RC-EDF). The DMGs between LP01 and LP11 mode signals in the FM-EDFA with the RC-EDF are 1.8 and 1.6 dB for LP01 and LP11 mode pumping, respectively, whereas those in a FM-EDFA with a conventional step-index FM EDF are 9.2 and 6.1 dB, indicating 7.4 and 4.5 dB DMG improvement for LP01 and LP11 mode pumping, respectively.
  • Keywords
    erbium; laser beams; laser modes; optical fibre amplifiers; optical pumping; LP01 mode pumping; LP01 mode signals; LP11 mode pumping; LP11 mode signals; differential modal gain; few-mode fibre amplifier; ring-core erbium-doped fibre;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2014.3411
  • Filename
    7014476
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=27529