Cascading nonlinearities in an organic single crystal core fiber: The Cerenkov regime

William E. Torruellas, Gijs Krijnen, Dug Y. Kim, Roland Schiek, George I. Stegeman, Petar Vidakovic, Joseph Zyss

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    The large nonlinear phase shifts imparted to the fundamental beam during Cerenkov second harmonic generation (SHG) in a DAN, 4-(N,N-dimethylamino)-3-acetamidonitrobenzene, single crystal core fiber are explained and modelled numerically. Cascading upconversion and downconversion processes leads to nonlinear phase shifts produced by the second order nonlinear coupling of the guided fundamental mode and the component of the Cerenkov second harmonic field trapped in the fiber cladding.
    Original languageEnglish
    Article number10.1016/0030-4018(94)90088-4
    Pages (from-to)122-130
    Number of pages9
    JournalOptics communications
    Issue number1-2
    Publication statusPublished - 1 Nov 1994

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