Spatial optical solitons resulting from multistep cascading.
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.
Kivshar
Y S
YS
Optical Sciences Center, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia.
Alexander
T J
TJ
Saltiel
S
S