Self-trapping of light beams and parametric solitons in diffractive quadratic media
- 1 August 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 52 (2) , 1670-1674
- https://doi.org/10.1103/physreva.52.1670
Abstract
It is shown that the mutual trapping of the fundamental and second-harmonic beams in a diffractive (or dispersive) medium with quadratic nonlinearity can support a family of two-wave (2+1)-dimensional solitons of circular symmetry. The stability analysis shows that these (2+1)-dimensional solitons are stable in the physically important region of parameters, although unstable solitons are also revealed and their instability dynamics is analyzed numerically. Phase-dependent and, in some cases, nondestructive collisions of these solitons are also considered.Keywords
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