Interchannel interaction of optical solitons

Avner Peleg, Misha Chertkov, Ildar Gabitov

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We study interaction between two solitons from different frequency channels propagating in an optical fiber. The interaction may be viewed as an inelastic collision, in which energy is lost to continuous radiation due to small but finite third order dispersion. We develop a perturbation theory with two small parameters: the third order dispersion coefficient [Formula presented] and the reciprocal of the interchannel frequency difference, [Formula presented] We find that amplitude of the leading contribution to radiation emitted during the collision is proportional to [Formula presented] The source term for this radiation is of the form that would be generated by a variation in the second order dispersion coefficient. In addition, the only other effects up to the combined third order of the perturbation theory are phase changes and position shifts of the solitons. Solitons propagating in a given frequency channel interact via radiation emitted due to collisions with many solitons from other frequency channels. We show that this intrachannel interaction effect, induced by many interchannel collisions, is identical to the radiation mediated intrachannel interaction effect observed for solitons propagating under the influence of disorder in the second order dispersion coefficient.

Original languageEnglish (US)
Pages (from-to)15
Number of pages1
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Issue number2
StatePublished - 2003

ASJC Scopus subject areas

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


Dive into the research topics of 'Interchannel interaction of optical solitons'. Together they form a unique fingerprint.

Cite this