title: Spatial optical solitons resulting from multistep cascading.
abstract: We introduce a novel class of parametric optical solitons supported simultaneously by two second-order nonlinear cascading processes, second-harmonic generation and sum-frequency mixing. We obtain analytical and numerical solutions for three-wave spatial solitons and show that the presence of an additional cascading mechanism can change dramatically the properties and stability of two-wave quadratic solitary waves.
authors: Optical Sciences Center, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia.
authors: Y S
authors: YS
authors: Kivshar
authors: T J
authors: TJ
authors: Alexander
authors: S
authors: S
authors: Saltiel