Counterpropagating self-trapped beams in photorefractive crystals

M. Belić, Ph Jander, K. Motzek, A. Desyatnikov, D. Jović, A. Strinić, M. Petrović, C. Denz, F. Kaiser

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


A time-dependent model for the formation of self-trapped optical beams in photorefractive media by counterpropagating laser beams is analysed. It is shown that dynamically the beams may form stable steady-state structures or display periodic and irregular temporal behaviour. Steady-state solutions of non-uniform cross section are found, representing a general class of self-trapped waveguides, that include counterpropagating spatial vector solitons as a particular case. Two critical curves are identified in the plane of parameters, the first one separating vector solitons from the stable bidirectional waveguides and the second one separating stable waveguides from the unstable ones. Dynamically stable rotating beam structures are discovered that have no analogues in the usual steady-state theory of spatial solitons.

Original languageEnglish
Pages (from-to)S190-S196
JournalJournal of Optics B: Quantum and Semiclassical Optics
Issue number5
Publication statusPublished - May 2004


  • Counterpropagating beams
  • Nonlinear optics
  • Photorefractive crystal
  • Transverse effects

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

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