Abstract

In media with quadratic nonlinearity spatial solitary waves can be created by mutual trapping of the fundamental and the second-harmonic waves. Such solitary waves, as they are soliton-like waves, retain the original beam width and intensity to some extent. Nevertheless, intensity fluctuation and depletion have been significant problems in addition to that a long propagation length is needed before forming a stable solitary wave.

© 1998 Optical Society of America