• DocumentCode
    1135966
  • Title

    Behavior of alkali impurities and their adverse effect on germania-doped silica fibers

  • Author

    Ogai, Mikio ; Iino, Akiro ; Matsubara, Kunihiro

  • Author_Institution
    Furukawa Electric Co., Ltd., Chiba, Japan
  • Volume
    5
  • Issue
    9
  • fYear
    1987
  • fDate
    9/1/1987 12:00:00 AM
  • Firstpage
    1214
  • Lastpage
    1218
  • Abstract
    Alkalies, such as sodium and potassium, were found to migrate from over-jacketing natural silica tubes into germania-doped cores forming defects leading to hydrogen-induced loss in the infrared wavelength region. These impurities were found to be removed from the same kind of natural silica tubes during the MCVD process. Results strongly point out that the absence of impurities is essential for 1.55-μm transmission systems based on germania-doped silica fiber.
  • Keywords
    Optical fiber losses; Optical fiber materials/fabrication; Conductivity; Hydrogen; Impurities; Infrared heating; Loss measurement; Optical fiber losses; Optical fiber testing; Propagation losses; Silicon compounds; Stability;
  • fLanguage
    English
  • Journal_Title
    Lightwave Technology, Journal of
  • Publisher
    ieee
  • ISSN
    0733-8724
  • Type

    jour

  • DOI
    10.1109/JLT.1987.1075647
  • Filename
    1075647
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1135966