Slow light propagation in photonic crystal waveguides with ring-shaped holes

M. Mulot (Corresponding Author), A. Säynätjoki, Sanna Arpiainen, H. Lipsanen, Jouni Ahopelto

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    23 Citations (Scopus)


    We use a single-defect photonic crystal waveguide with ring-shaped holes to achieve a small group velocity with relatively low group velocity dispersion.
    We show theoretically that a group index larger than 20 with a nearly constant group velocity dispersion parameter of 4.2 ps nm−1 mm−1 over a wavelength range of 5 nm can be achieved. We manufactured a photonic crystal waveguide with ring-shaped holes onto silicon-on-insulator substrate.
    From the Fabry–Pérot oscillations in the transmission spectrum, we deduced the group index in the waveguides as a function of the wavelength.
    We recorded group index values as large as 22.
    Original languageEnglish
    Pages (from-to)S415-S418
    JournalJournal of Optics A: Pure and Applied Optics
    Issue number9
    Publication statusPublished - 2007
    MoE publication typeA1 Journal article-refereed
    Event1st European Topical Meeting on Nanophotonics and Metamaterials - Seefeld, Austria
    Duration: 8 Jan 200711 Jan 2007



    • photonic crystals
    • integrated optics materials
    • waveguide
    • silicon-on-insulator

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