Solitons

Formation and optical control of dissipative vortex solitons in hollow-core optical fibres filled with a cold atomic gas

M. Yu. Gubin^a, A. V. Prokhorov^a, M. G. Gladush^b, A. Yu. Leksin^a, S. M. Arakelyan<sup>a

a</sup> Vladimir State University
^b Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow

Abstract: We consider the problem of formation of optical vortex solitons in a medium of three-level atoms, taking into account the local field effects. The principal possibility of formation of optical solitons controlled by an optical pump wave under the off-resonance Raman conditions of the lambda-type interaction scheme is predicted in an optically dense medium, i.e., in a hollow-core photonic-crystal optical fibre filled with a gas of cold atoms ⁸⁷Rb.

Keywords: nonlinear atom – optical interaction, optically dense medium, vortex solitons, gas-filled fibres, optic control.

PACS: 42.65.Tg, 42.65.Wi, 42.70.Qs, 42.81.Dp

Received: 07.12.2011
Revised: 25.04.2012

 English version: Quantum Electronics, 2012, 42:7, 616–624

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