Switching characteristics of an InP photonic crystal nanocavity: Experiment and theory

Yi Yu, Evarist Palushani, Mikkel Heuck, Nadezda Kuznetsova, Philip Trøst Kristensen, Sara Ek, Dragana Vukovic, Christophe Peucheret, Leif Katsuo Oxenløwe, Sylvain Combrié, Alfredo de Rossi, Kresten Yvind, Jesper Mørk

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    The dynamical properties of an InP photonic crystal nanocavity are experimentally investigated using pump-probe techniques and compared to simulations based on coupled-mode theory. Excellent agreement between experimental results and simulations is obtained when employing a rate equation model containing three time constants, that we interpret as the effects of fast carrier diffusion from an initially localized carrier distribution and the slower effects of surface recombination and bulk recombination. The variation of the time constants with parameters characterizing the nanocavity structure is investigated. The model is further extended to evaluate the importance of the fast and slow carrier relaxation processes in relation to patterning effects in the device, as exemplified by the case of all-optical wavelength conversion.
    Original languageEnglish
    JournalOptics Express
    Issue number25
    Pages (from-to)31047-31061
    Publication statusPublished - 2013

    Bibliographical note

    This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-25-31047. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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