Soliton emission in amplifying optical lattice surfaces
arXiv:0705.3461 · doi:10.1364/OL.32.002061
Abstract
We address surface solitons supported by the interface of optical lattices imprinted in saturable media with surface-localized gain. The nonlinearity saturation puts restrictions on the maximal energy flow carried by surface solitons. As a consequence, the presence of thin amplifying layer near the surface results in the controllable emission of solitons towards the lattice at angles depending on the amplification rate and on lattice depth.
14 pages, 4 figures, to appear in Optics Letters