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Optical Engineering

Optical vortex bullets in inhomogeneous dispersive nonlinear fibers
Author(s): Robabeh Talebzadeh; Mehrdad Bavaghar
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Paper 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.

Paper Details

Date Published: 7 May 2012
PDF: 4 pages
Opt. Eng. 51(5) 055003 doi: 10.1117/1.OE.51.5.055003
Published in: Optical Engineering Volume 51, Issue 5
Show Author Affiliations
Robabeh Talebzadeh, Islamic Azad Univ. of Tabriz (Iran, Islamic Republic of)
Mehrdad Bavaghar, Atomic Organization of Iran (Iran, Islamic Republic of)

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