We investigate the properties of the families of spatial walking solitons propagating in planar waveguides made of quadratic nonlinear media under conditions for second-harmonic generation in the presence of Poynting vector walk-off. We study in detail the shape and various features of the solitons, their stability on propagation, and their excitation.
© 1998 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
Lluis Torner, Dumitru Mihalache, Dumitru Mazilu, Maria C. Santos, and Nail N. Akhmediev, "Spatial walking solitons in quadratic nonlinear crystals," J. Opt. Soc. Am. B 15, 1476-1487 (1998)