Bright spatial solitons in defocusing Kerr media supported by cascaded nonlinearities
- 15 November 1997
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 22 (22), 1680-1682
- https://doi.org/10.1364/ol.22.001680
Abstract
We show that resonant wave mixing that is due to quadratic nonlinearity can support stable bright spatial solitons, even in the most counterintuitive case of a bulk medium with defocusing Kerr nonlinearity. We analyze the structure and stability of such self-guided beams and demonstrate that they can be generated from a Gaussian input beam, provided that its power is above a certain threshold.Keywords
This publication has 8 references indexed in Scilit:
- Spatial Solitons and Induced Kerr Effects in Quasi-Phase-Matched Quadratic MediaPhysical Review Letters, 1997
- Self-focusing and solitonlike structures in materials with competing quadratic and cubic nonlinearitiesPhysical Review E, 1997
- Dynamical equations for wave packets in materials with both quadratic and cubic responseJournal of the Optical Society of America B, 1997
- ?(2) cascading phenomena and their applications to all-optical signal processing, mode-locking, pulse compression and solitonsOptical and Quantum Electronics, 1996
- Stable self-trapping and ring formation in polydiacetylene para-toluene sulfonateOptics Letters, 1995
- Optical solitons supported by competing nonlinearitiesOptics Letters, 1995
- Instability of Solitons Governed by Quadratic NonlinearitiesPhysical Review Letters, 1995
- Observation of Two-Dimensional Spatial Solitary Waves in a Quadratic MediumPhysical Review Letters, 1995