• DocumentCode
    807285
  • Title

    Leakage loss in trench-bulge waveguides

  • Author

    Krause, Michael ; Renner, Hagen ; Harke, Alexander ; Müller, Jörg ; Brinkmeyer, Ernst

  • Author_Institution
    Tech. Univ. Hamburg-Harburg, Hamburg, Germany
  • Volume
    23
  • Issue
    5
  • fYear
    2005
  • fDate
    5/1/2005 12:00:00 AM
  • Firstpage
    1890
  • Lastpage
    1895
  • Abstract
    This paper shows that leakage loss is an important loss mechanism in integrated optical trench-bulge waveguides. The propagation losses due to leakage can easily exceed 1 dB/cm in these waveguide geometries. By simply using a deeper trench or a cavity in the substrate to deposit the waveguide in, the leakage losses can be reduced dramatically.
  • Keywords
    integrated optics; optical design techniques; optical losses; optical waveguide theory; integrated optical waveguides; leakage loss; propagation losses; trench-bulge waveguides; waveguide geometries; Etching; Geometrical optics; Geometry; Integrated optics; Optical losses; Optical scattering; Optical waveguide components; Optical waveguides; Propagation losses; Silicon; Integrated optics; leakage loss; leaky modes; trench-bulge waveguides; waveguide losses;
  • fLanguage
    English
  • Journal_Title
    Lightwave Technology, Journal of
  • Publisher
    ieee
  • ISSN
    0733-8724
  • Type

    jour

  • DOI
    10.1109/JLT.2005.844492
  • Filename
    1430786