Vortex confinement and bending with the aid of nonlocal solitons

G. Assanto, A. A. Minzoni and N. F. Smyth

Opt. Lett. 39 (3), 509-512 (2014)

Abstract:

We investigate the routing of vortex beams in nonlocal media by means of coaxial, co-propagating spatial optical solitons. By introducing a refractive index perturbation in the form of a localized defect or a dielectric interface, the soliton waveguide can be curved and, therefore, can deviate the collinear vortex, effectively routing it, while preventing its destabilization and breakup.