Optical vortex bullets in inhomogeneous dispersive nonlinear fibers

Robabeh Talebzadeh; Mehrdad Bavaghar

doi:10.1117/1.OE.51.5.055003

7 May 2012 Optical vortex bullets in inhomogeneous dispersive nonlinear fibers

Robabeh Talebzadeh, Mehrdad Bavaghar

Author Affiliations +

Optical Engineering, Vol. 51, Issue 5, 055003 (May 2012). https://doi.org/10.1117/1.OE.51.5.055003

Abstract

We investigate the possibility of forming spatiotemporal vortex solitons (optical vortex bullets) in inhomogeneous dispersive nonlinear optical fibers using a graded-index Kerr medium as an example. We use a variational approach to solve the multidimensional inhomogeneous nonlinear Schrödinger equation and show that vortex solitons can be stabilized under certain conditions in self-defocusing Kerr medium. Optical vortex results from the phase singularity in a light wave, which the energy flow rotates around the vortex core in a given direction. However, we show that vortex solitons become bistable in self-focusing Kerr medium, depending on pulse energy.

Citation Download Citation

Robabeh Talebzadeh and Mehrdad Bavaghar "Optical vortex bullets in inhomogeneous dispersive nonlinear fibers," Optical Engineering 51(5), 055003 (7 May 2012). https://doi.org/10.1117/1.OE.51.5.055003

Published: 7 May 2012

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