Phase control reduction of four-wave mixing in induced waveguiding scheme

The waveguiding induced in a weak probe propagating in a medium of two-level atoms driven by a copropagating, intense, strongly detuned pump was studied. Similar oscillations can be induced in the transverse profile of the probe when the transverse profile of the pump exhibits soliton-like oscillations. The weak beam which is created during propagation by four-wave mixing was shown to have a significant effect on the waveguiding of the probe. Although the waveguide effect is essentially unlimited when the effect of four-wave mixing is ignored, it becomes severely limited when the medium is optically thick and the effect of four-wave mixing becomes dominant.