SPATIAL SOLITON-INDUCED GUIDING BY CROSS-PHASE MODULATION

We show that spatial solitons are able to induce the stable guiding of a weak probe beam in a homogeneous Kerr-type nonlinear media through cross-phase modulation (XPM). The modes of the induced waveguide are derived from the propagation equation of the probe. Experimental results are reported, demonstrating the stable confinement of a green probe beam induced by an IR spatial soliton in CS2. Induced antiguiding and beam splitting are also reported for pump and probe of perpendicular polarizations. All results are in excellent agreement with numerical simulations of the propagation.