Comparison of coupled mode theory and FDTD simulations of coupling between bent and straight optical waveguides

Remco Stoffer, Kirankumar R. Hiremath, Manfred Hammer

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    7 Citations (Scopus)
    78 Downloads (Pure)

    Abstract

    Analysis of integrated optical cylindrical microresonators involves the coupling between a straight waveguide and a bent waveguide. Our (2D) variant of coupled mode theory is based on analytically represented mode profiles. With the bend modes expressed in Cartesian coordinates, coupled mode equations can be derived in a classical way and solved by numerical integration. Proper manipulation of the propagation matrix leads to stable results even in parameter domains of compact and/or radiative structures, which seemed unsuitable for a perturbational approach due to oscillations of the matrix elements along the propagation. Comparisons with FDTD calculations show convincing agreement.
    Original languageEnglish
    Title of host publicationMicroresonators As Building Blocks For VLSI Photonics
    Subtitle of host publicationInternational School of Quantum Electronics, 39th Course
    EditorsFrancesco Michelotti, Alfred Driessen, Mario Bertolotti
    PublisherAIP
    Pages366-377
    Number of pages12
    ISBN (Print)0-7354-0184-5
    DOIs
    Publication statusPublished - Jun 2004

    Publication series

    NameAIP Conference Proceedings
    PublisherAIP
    Volume709
    ISSN (Print)0094-243X

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