Classification of kink type solutions to the extended derivative nonlinear Schrödinger equation

J. Wyller, T. Fla, J. Juul Rasmussen

    Research output: Contribution to journalJournal articleResearch

    Abstract

    The Raman Extended Derivative Non Linear Schrodinger (R-EDNLS) equation which models single mode propagation in optical fibers, is shown to possess travelling and stationary kink envelope solutions of monotonic and oscillatory type. These structures have been called optical shocks in analogy with hydrodynamical shocks or optical double layers in analogy with electrostatic double layers in plasma physics. Hydrodynamical equations for the action density and local wave number are derived and shock wave solutions of the Rankine-Hugionot type are constructed. They are consistent with the kink structures when excluding the nongeneric case that the kink envelope approaches zero in a nonmonotonic way.
    Original languageEnglish
    JournalPhysica Scripta. Topical Issues
    Volume57
    Issue number3
    Pages (from-to)427-435
    ISSN0281-1847
    DOIs
    Publication statusPublished - 1998

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