Signal propagation within multimode waveguides with rectangular cross sections is modeled by an approximative determination of the propagating modes. Precondition for the approach is a small difference between the refractive indices of the waveguide's core and cladding leading to a small numerical aperture. The approximation yields good results for modes far away from cutoff. As the roughness between core and cladding of real board-integrated waveguides results in a stronger attenuation of the higher order modes compared to the modes of lower order, the approximation seems to be well suited for modeling this kind of waveguides.


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    Title :

    Modeling of optical multimode waveguides


    Contributors:
    Halbe, K. (author) / Griese, E. (author)


    Publication date :

    2005-01-01


    Size :

    688732 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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