Solitary waves in a nonlinear oppositely directed coupler

A. I. Maǐmistov, I. R. Gabitov, N. M. Litchinitser

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


The propagation of pulses in the system of two tunnel-coupled optical waveguides from optically nonlinear materials one of which has a negative refractive index, while the other one, positive, is investigated theoretically. The propagation of nonlinear waves in this structure is studied based on the model of coupled modes. For linear waves, this pair of coupled waveguides behaves as a mirror resulting in the change of direction of the energy flow upon penetration of radiation from one waveguide to the other. The solutions to the system of nonlinear equations describing the stationary propagation of the solitary wave, the gap soliton, in a particular direction are found. This soliton is formed by the coupled pair of wave packets each localized in the corresponding waveguide.

Original languageEnglish (US)
Pages (from-to)253-257
Number of pages5
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Issue number2
StatePublished - Feb 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Solitary waves in a nonlinear oppositely directed coupler'. Together they form a unique fingerprint.

Cite this