Self-trapped bidirectional waveguides in a saturable photorefractive medium

M. Belić, Ph Jander, A. Strinić, A. Desyatnikov, C. Denz

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


A theory of self-trapped bidirectional waveguides was developed. In counterpropagating (CP) geometry, the inclusion of time-dependent effects was found to be crucial for the formation of dynamical waveguiding structures. The generation of a CP (1+1) vector soliton was demonstrated numerically, and a more general class of nonsoliton steady-state solutions proposed. The level of temporal coherence of interacting beams influenced the mutual coupling due to the formation of a refractive index grating. In addition to the generation of steady-state induced waveguides, the dynamic alternation of states followed by a transverse modulational instability, as well as the onset of longitudinal modulational instabilities were observed.

Original languageEnglish
Article number025601
Pages (from-to)025601/1-025601/4
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number2 2
Publication statusPublished - Aug 2003
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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