Discrete solitons in coupled active lasing cavities

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

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


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
StatePublished - 15 Nov 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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