BRIGHT SPATIAL SOLITONS IN DEFOCUSING KERR MEDIA SUPPORTED BY CASCADED NONLINEARITIES

Authors
BANG O KIVSHAR YS BURYAK AV
Citation
O. Bang et al., BRIGHT SPATIAL SOLITONS IN DEFOCUSING KERR MEDIA SUPPORTED BY CASCADED NONLINEARITIES, Optics letters, 22(22), 1997, pp. 1680-1682
Citations number
9
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
22
Issue
22
Year of publication
1997
Pages
1680 - 1682
Database
ISI
SICI code
0146-9592(1997)22:22<1680:BSSIDK>2.0.ZU;2-R
Abstract
We show that resonant wave mixing that is due to quadratic nonlinearit y can support stable bright spatial solitons, even in the most counter intuitive case of a bulk medium with defocusing Kerr nonlinearity. We analyze the structure and stability of such self-guided beams and demo nstrate that they can be generated from a Gaussian input beam, provide d that its power is above a certain threshold. (C) 1997 Optical Societ y of America.