Solitary waves in a nonlinear oppositely directed coupler

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

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


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
Pages (from-to)253-257
Number of pages5
JournalOptics and Spectroscopy
Issue number2
Publication statusPublished - Feb 2008
Externally publishedYes


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