We suggest a novel type of composite spatial optical soliton created by a coherent vortex beam guiding a partially incoherent light beam in a self-focusing nonlinear medium. We show that the incoherence of the guided mode may enhance, rather than suppress, the vortex azimuthal instability, and we also demonstrate strong destabilization of dipole-mode solitons by partially incoherent light.
© 2004 Optical Society of America
Kristian Motzek, Friedemann Kaiser, José R. Salgueiro, Yuri Kivshar, and Cornelia Denz, "Incoherent vector vortex-mode solitons in self-focusing nonlinear media," Opt. Lett. 29, 2285-2287 (2004)