The European Physical Journal Special Topics

, Volume 173, Issue 1, pp 281–288

Optical vortex solitons and soliton clusters in photonic crystal fibres

Regular Article

DOI: 10.1140/epjst/e2009-01080-0

Cite this article as:
Salgueiro, J. & Kivshar, Y. Eur. Phys. J. Spec. Top. (2009) 173: 281. doi:10.1140/epjst/e2009-01080-0


We study higher-order nonlinear modes in the form of vortex solitons and soliton clusters propagating in the waveguides created in photonic crystal fibers made of a material with the focusing Kerr nonlinearity. We find numerically different families of such nonlinear modes with a nontrivial topology and study their bifurcations. We also study the soliton stability to propagation. We demonstrate that waveguides in photonic crystal fibers may support a variety of soliton clusters with the symmetries that may differ from the lattice symmetry. We also discuss briefly the case of a dual-core coupler created by two neighboring cores in a photonic crystal fiber and find numerically the profiles of symmetric and asymmetric nonlinear modes.

Copyright information

© EDP Sciences and Springer 2009

Authors and Affiliations

  1. 1.Departamento de Física AplicadaUniversidade de Vigo, Facultade de Ciencias de OurenseOurenseSpain
  2. 2.Nonlinear Physics Center and Center for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, Australian National UniversityCanberraAustralia