Abstract

The observation of confinement and guiding of light induced by an optical vortex soliton (OVS) in a cubic–quintic (defocusing–focusing) medium is reported. The waveguide effect induced by the bright region of the vortex beam, is mainly due to the defocusing nonlinearity that allows the guiding of a probe beam propagating inside of the OVS dark region. The experimental results are corroborated by numerical simulations based on the cubic–quintic nonlinear Schrödinger equation, showing excellent agreement.

© 2015 Optical Society of America

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