Abstract
Both, spatial and temporal solitons (more properly, solitary waves) exist in bulk crystals and in optical waveguides made of nonlinear quadratic media [1]-[3]. Bright spatial solitons have been already observed in second harmonic generation experiments [4]-[5]. Families of stationary soliton solutions of the governing are known to exist under ideal conditions, namely when there is no walk-off betwen the interacting waves [2]-[3]. Temporal walk-off is due to different group velocities of the waves forming the soliton, while spatial beam walk-off is due to different propagation directions of energy and phase fronts in anisotropic media. Beam walk-off is always present in the experiments when birefringence-tuning phase-matching techniques are used. Numerical experiments indicate that solitonlike propagation occurs in the presence of walk-off [2], but physically relevant soliton solutions are not known at present.
© 1996 Optical Society of America
PDF ArticleMore Like This
C. Etrich, U. Peschel, F. Lederer, and B. A. Malomed
FD.7 Nonlinear Guided Waves and Their Applications (NP) 1996
Thomas Peschel, Ulf Peschel, Falk Lederer, and Boris Malomed
SaC.3 Nonlinear Guided Waves and Their Applications (NP) 1996
Stefano Trillo, Alexander V. Buryak, and Yuri S. Kivshar
NThB5 Nonlinear Guided Waves and Their Applications (NP) 1995