Influence of a Bulk Waveguide on the Propagation of Two-Component Vortices

Abstract

Studying the propagation of $3\mathbf{D}+1$ pulses with dislocations in a quadratically nonlinear bulk waveguide we demonstrate that the waveguide geometry can make it possible to observe stable vortex light bullets for the extended range of parameters, in particualar, at normal dispersion. The reduction of waveguide geometry strength leads to the stretching of pulses either in spatial or temporal directions.