We demonstrate the possibility of self-trapping of optical beams by use of quasi phase matching in a counterpropagating configuration in quadratic media. We also show the predominant stability of these beams and estimate the power level required for their observation.
© 1999 Optical Society of America
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.2770) Diffraction and gratings : Gratings
(190.0190) Nonlinear optics : Nonlinear optics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
Kazimir Y. Kolossovski, Alexander V. Buryak, and Rowland A. Sammut, "Quadratic solitary waves in a counterpropagating quasi-phase-matched configuration," Opt. Lett. 24, 835-837 (1999)