Journal of Experimental and Theoretical Physics

, Volume 124, Issue 1, pp 49–56

Self-action of Bessel wave packets in a system of coupled light guides and formation of light bullets

Atoms, Molecules, Optics

DOI: 10.1134/S1063776116150061

Cite this article as:
Balakin, A.A., Mironov, V.A. & Skobelev, S.A. J. Exp. Theor. Phys. (2017) 124: 49. doi:10.1134/S1063776116150061


The self-action of two-dimensional and three-dimensional Bessel wave packets in a system of coupled light guides is considered using the discrete nonlinear Schrödinger equation. The features of the self-action of such wave fields are related to their initial strong spatial inhomogeneity. The numerical simulation shows that for the field amplitude exceeding a critical value, the development of an instability typical of a medium with the cubic nonlinearity is observed. Various regimes are studied: the self-channeling of a wave beam in one light guide at powers not strongly exceeding a critical value, the formation of the “kaleidoscopic” picture of a wave packet during the propagation of higher-power radiation along a stratified medium, the formation of light bullets during competition between self-focusing and modulation instabilities in the case of three-dimensional wave packets, etc. In the problem of laser pulse shortening, the situation is considered when the wave-field stratification in the transverse direction dominates. This process is accompanied by the self-compression of laser pulses in well enough separated light guides. The efficiency of conversion of the initial Bessel field distribution to two flying parallel light bullets is about 50%.

Copyright information

© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  • A. A. Balakin
    • 1
  • V. A. Mironov
    • 1
  • S. A. Skobelev
    • 1
  1. 1.Institute of Applied PhysicsRussian Academy of SciencesNizhny NovgorodRussia

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