https://doi.org/10.1140/epjd/e2014-40764-8
Regular Article
The effect of atomic and optical perturbations on formation and propagation of vortex solitons in a dense atomic media of gas-filled hollow-core optical fibers
1 Department of Physics and Applied
Mathematics, Stoletovs Vladimir State University, Gorky Str. 87, 600000
Vladimir,
Russia
2 Institute for Spectroscopy of the
Russian Academy of Sciences, Fizicheskaya Str. 5, Troitsk, 142190
Moscow,
Russia
a e-mail: mglad@isan.troitsk.ru
Received:
5
December
2013
Received in final form:
28
March
2014
Published online:
23
June
2014
We study the problem of formation and stability of light vortices in presence of atomic and optical perturbations in a hollow-core fibers filled with a cold gas of three-level 87Rb atoms. We show that the Lorentz local field in description of light-matter interaction is responsible for a significant shift of the stability area of the vortex solitons on the plane of the control parameters. Scenarios of jump-like transitions of vortex solitons to vortex-free localized optical structures are determined for the cases when those are initiated by either modulation of the pump field intensity, or generation of sound waves, or increase of temperature-dependent fluctuations of the gas density in the hollow core of optical fiber.
Key words: Optical Phenomena and Photonics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2014