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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