High-contrast all-optical switching by using cascading in the Cerenkov regime

Gijs J.M. Krijnen, George I. Stegeman, Hugo J.W.M. Hoekstra

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


    The interest in χ(2) materials and related nonlinear wave-propagation effects has been driven for a long time by potential applications in efficient blue-light generation by second harmonic generation (SHG) and electro-optical switching.1 Recently additional interest has been raised by advances in polymeric χ(2) materials, which promise large nonlinear phase shifts by the cascading of second-order effects.2 This offers possibilities for tackling problems that have been traditionally thought to need third-order nonlinearities: all-optical switching. From a practical point of view, the interest in SHG and cascading has been dominated by guided-mode/guided-mode interactions. Guided-mode/radiation-mode interactions have been studied as well,3 but analytical relations are difficult to obtain because of the problems associated with normalization of radiation modes. Consequently, most work has concentrated primarily on the efficiency of SHG. However, interactions with radiation modes can be easily studied by means of the SHG beam-propagation method.4 This method, an extension of normal BPMs, consists of a split-step approach in which the calculation of the propagation of the fields at the two wavelengths is alternated by the calculation of the nonlinear interactions.
    Original languageEnglish
    Title of host publicationConference on Lasers and Electro-Optics 1995
    Subtitle of host publicationBaltimore, Maryland, United States 21–26 May 1995
    PublisherOptical Society of America
    ISBN (Print)1-55752-400-9
    Publication statusPublished - 22 May 1995
    EventConference on Lasers and Electro-Optics, CLEO 1995 - Baltimore, United States
    Duration: 21 May 199526 May 1995


    ConferenceConference on Lasers and Electro-Optics, CLEO 1995
    Abbreviated titleCLEO
    Country/TerritoryUnited States


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