Modeling of grating assisted standing wave microresonators for filter applications in integrated optics

Manfred Hammer, D. Yudistira, Remco Stoffer

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    A wide, multimode segment of a dielectric optical waveguide, enclosed by Bragg reflectors and evanescently coupled to adjacent port waveguides, can constitute the cavity in an integrated optical microresonator. It turns out that the device can be described adequately in terms of an approximate coupled mode theory model which involves only a few guided modes as basis fields. By reasoning along the coupled mode model, we motivate a simple design strategy for the resonator device. Rigorous two dimensional mode expansion simulations are applied to verify the predictions of the approximate model. The results exemplify the specific spectral response of the standing wave resonators. As refinements we discuss the single resonance of a device with nonsymmetrically detuned Bragg reflectors, and the cascading of two Fabry-Perot cavities, where the coupling across an intermediate shorter grating region establishes a power transfer characteristic that is suitable for an add-drop filter.
    Original languageUndefined
    Article number10.1023/
    Pages (from-to)25-42
    Number of pages13
    JournalOptical and quantum electronics
    Issue number1-3
    Publication statusPublished - Jan 2004


    • Numerical modeling
    • Rectangular microcavities
    • Coupled mode theory
    • Optical microresonators
    • IR-65072
    • Integrated Optics
    • waveguide Bragg gratings
    • EWI-13942
    • METIS-218091

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