• DocumentCode
    927210
  • Title

    Dispersion in optical waveguides with graded refractive index

  • Author

    Geckeler, S.

  • Author_Institution
    Siemens AG, Research Laboratories, Mÿnchen, West Germany
  • Volume
    11
  • Issue
    7
  • fYear
    1975
  • Firstpage
    139
  • Lastpage
    140
  • Abstract
    Dispersion in graded-index optical fibres can be calculated by ray-optical or wave-optical methods. This letter reports a seeming discrepancy between the results of both methods: in a fibre with a refractive profile that has been optimised by the WKB wave-optical method, helical rays may occur with a much larger transit-time spread than the modes computed with the WKB method. The question is what transit-time spread is relevant for the bandwidth of the fibre.
  • Keywords
    dispersion (wave); fibre optics; optical waveguide theory; WKB wave optical method; bandwidth; dispersion; graded refractive index; helical rays; modes; optical fibres; optical waveguides; ray optical method; transit time spread;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19750106
  • Filename
    4236618
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=927210