Coupled Mode Theory and FDTD Simulations of the Coupling Between Bent and Straight Optical Waveguides

K.R. Hiremath, Remco Stoffer, Manfred Hammer

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    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 languageUndefined
    Title of host publication8th Annual Symposium of the IEEE/LEOS Benelux Chapter
    EditorsR.M de Ridder, R.M. de Ridder, G. Altena, G Altena, D.H. Geuzebroek, R. Dekker, R Dekker
    Place of PublicationEnschede
    PublisherUniversity of Twente
    Number of pages4
    ISBN (Print)903651990X
    Publication statusPublished - Nov 2003
    Event8th Annual Symposium IEEE/LEOS Benelux Chapter 2003 - University of Twente, Enschede, Netherlands
    Duration: 20 Nov 200321 Nov 2003
    Conference number: 8

    Publication series

    PublisherUniversity of Twente


    Conference8th Annual Symposium IEEE/LEOS Benelux Chapter 2003


    • EWI-13959
    • METIS-212892
    • IR-58164

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