Abstract
We study self-action of light in parametric wave interactions in nonlinear quadratic media. We show the existence of stationary solitons in the presence of Poynting vector beam walk-off or different group velocities between the waves. We discover that the new solitons constitute a two-parameter family, and they exist for different wave intensities and transverse velocities. We discuss the properties of the walking solitons and their experimental implications.
- Received 15 March 1996
DOI:https://doi.org/10.1103/PhysRevLett.77.2455
©1996 American Physical Society
