Efficient formalism for treating tapered structures using the Fourier modal method

Andreas Dyhl Østerkryger, Niels Gregersen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    We investigate the development of the mode occupations in tapered structures using the Fourier modal method. In order to use the Fourier modal method, tapered structures are divided into layers of uniform refractive index in the propagation direction and the optical modes are found within each layer. This is not very efficient and in this proceeding we take the first steps towards a more efficient formalism for treating tapered structures using the Fourier modal method. We show that the coupling coefficients through the structure are slowly varying and that only the first few modes are occupied. We exploit both of these properties in the developing of a more efficient formalism.
    Original languageEnglish
    Title of host publicationProceedings of SPIE
    Number of pages7
    PublisherSPIE - International Society for Optical Engineering
    Publication date2016
    Article number988917
    DOIs
    Publication statusPublished - 2016
    EventOptical Modelling and Design IV: SPIE Conference 9889 - SQUARE Brussels Meeting Centre, Brussels, Belgium
    Duration: 3 Apr 20167 Apr 2016

    Conference

    ConferenceOptical Modelling and Design IV
    LocationSQUARE Brussels Meeting Centre
    Country/TerritoryBelgium
    CityBrussels
    Period03/04/201607/04/2016

    Keywords

    • Coupled-mode theory
    • Fourier modal method
    • Tapered structures
    • Computational photonics
    • Singlephoton sources

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    • SPIE Photonics Europe 2016

      Andreas Dyhl Østerkryger (Participant)

      3 Apr 20167 Apr 2016

      Activity: Attending an eventParticipating in or organising a conference

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