Discrete solitons in coupled active lasing cavities

Jaroslaw E. Prilepsky*, Alexey V. Yulin, Magnus Johansson, Stanislav A. Derevyanko

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review


    We examine the existence and stability of discrete spatial solitons in coupled nonlinear lasing cavities (waveguide resonators), addressing the case of active defocusing media, where the gain exceeds damping in the low-amplitude limit. A new family of stable localized structures is found: these are bright and gray cavity solitons representing the connections between homogeneous and inhomogeneous states. Solitons of this type can be controlled by discrete diffraction and are stable when the bistability of homogenous states is absent.

    Original languageEnglish
    Pages (from-to)4600-4602
    Number of pages3
    JournalOptics Letters
    Issue number22
    Early online date2 Oct 2012
    Publication statusPublished - 15 Nov 2012

    Bibliographical note

    © 2012 Optical Society of America


    • cavity solitons
    • defocusing
    • discrete defraction
    • discrete soliton
    • discrete spatial solitons
    • existence and stability
    • localized structures
    • low-amplitude
    • waveguide resonators


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