Slow-light dispersion in coupled periodic waveguides

Andrey A. Sukhorukov, Andrei V. Lavrinenko, Dmitry N. Chigrin, Dmitry E. Pelinovsky, Yuri S. Kivshar

    Research output: Contribution to journalArticlepeer-review

    36 Citations (Scopus)


    Periodic waveguides bring a new twist to the typical waveguiding problems of the intermediate case between photonic crystal waveguides and photonic wires or ridge waveguides. We develop an asymptotic theory applicable for a broad class of coupled periodic waveguide structures and use the analytical expressions to identify the generic types of dispersion in the vicinity of a photonic band edge, where the group velocity of light is reduced. We show that the dispersion can be controlled by the longitudinal shift between the waveguides. We also demonstrate through finite-difference time-domain simulations examples of spatial and temporal pulse dynamics in association with different types of slow-light dispersion.

    Original languageEnglish
    Pages (from-to)C65-C74
    JournalJournal of the Optical Society of America B: Optical Physics
    Issue number12
    Publication statusPublished - 1 Dec 2008


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