Nonlinear Fano resonance in photonic crystal waveguide and cavity system: Physical properties and applications

Yi Xu, Andrey E. Miroshnichenko

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


    We show that the photonic crystal waveguide and cavity system could be a superior platform to observe and manipulate nonlinear Fano resonance. Using a modified Fano-Anderson model, we can study the nonlinear dynamics in this system. By adding a scattering channel as a continuum to this system, there are bound states in the continuum in such photonic system. We can therefore obtain the tunable interaction of Fano resonances in the Mach-Zehnder-Fano interferometers by exciting the bound state like mode. The nonlinear version of Mach-Zehnder-Fano interferometers can be used to enhance the nonlinear response which facilitates the reduction of optical switching power. In contrast, by adding a scattering channel as a discrete state to this system, we can shape the asymmetry nonlinear transmission of the system. Furthermore, the nonreciprocity of the photonic system can be manipulated dynamically. The unidirectional transmission can be managed by the properties of the input signal, resembling an optical diode with reconfigurable forward direction and transmission contrast. We also address the possibility to control the properties of the nonreciprocity by using a pump pulse, providing a chance to control the system in an all-optical manner.

    Original languageEnglish
    Title of host publicationNanophotonics and Micro/Nano Optics II
    EditorsZhiping Zhou, Kazumi Wada
    ISBN (Electronic)9781628413502
    Publication statusPublished - 2014
    EventNanophotonics and Micro/Nano Optics II - Beijing, China
    Duration: 9 Oct 201411 Oct 2014

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X


    ConferenceNanophotonics and Micro/Nano Optics II


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