We develop a theory of soliton interactions in a bulk χ<sup>(2)</sup> medium. In particular, we derive a general analytical model based on the effective particle approach to predict the result of the soliton interactions and also verify the validity of the model by direct numerical simulations. Among the major phenomena investigated are soliton scattering, spiraling, and fusion and also power exchange between the colliding solitons.
© 1999 Optical Society of America
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(190.7070) Nonlinear optics : Two-wave mixing
(230.4320) Optical devices : Nonlinear optical devices
A. V. Buryak and V. V. Steblina, "Soliton collisions in bulk quadratic media: comprehensive analytical and numerical study," J. Opt. Soc. Am. B 16, 245-255 (1999)