Abstract

The algorithm used in our numerical experiments is the split-step-type angular spectrum method.¹ Our primary propagation model is the Klein Gordon (waveguide) equation with a cubically nonlinear term. By an appropriate choice of assumption and parameters, this equation describes with unilateral two dimensions. Thus, by formal analogies, our beam experiments can be directly transferred to the pulse domain. Our main interest in the present experiments lies in the different amplitude oblique beam interaction which is equivalent to collision of solitons with a difference velocity.

© 1989 Optical Society of America