We study the second-harmonic generation and localization of light in a reconfigurable waveguide induced by an optical vortex soliton in a defocusing Kerr medium. We show that the vortex-induced waveguide greatly improves conversion efficiency from the fundamental to the second-harmonic field.
© 2004 Optical Society of America
José R. Salgueiro, Andreas H. Carlsson, Elena Ostrovskaya, and Yuri Kivshar, "Second-harmonic generation in vortex-induced waveguides," Opt. Lett. 29, 593-595 (2004)