Abstract
In a Kerr-medium stable spatial solitons or self-trapped beams can exist only in two-dimensional geometries as in planar waveguides where the diffraction is limited to one spatial dimension. However, in a medium with a saturable nonlinear refraction index change Δn(I), the rate at which a beam tends to focus is restricted, therefore diffraction will counterbalance the self-focusing for a critical intensity preventing the beam collapse. Recently photorefractive materials have been used as a medium with saturable nonlinearity to generate spatial solitons as well in (1 + 1) as in (2 + 1) dimensions.1
© 1996 Optical Society of America
PDF ArticleMore Like This
S Gatz and J Herrmann
WL37 International Quantum Electronics Conference (IQEC) 1996
V.A. Smirnov, L.A. Nesterov, N.N. Rosanov, and N.V. Vyssotina
QFB6 European Quantum Electronics Conference (EQEC) 1996
Vladimir Tikhonenko, Jason Christou, Barry Luther-Davies, and Yuri Kivshar
NFB.5 Nonlinear Optics: Materials, Fundamentals and Applications (NLO) 1996