Mobility of high-power solitons in saturable nonlinear photonic lattices
  We theoretically study the properties of one-dimensional nonlinear saturable photonic lattices exhibiting multiple mobility windows for stationary solutions. The effective energy barrier decreases to a minimum in those power regions where a new intermediate stationary solution appears. As an application, we investigate the dynamics of high-power gaussian-like beams finding several regions where the light transport is enhanced. 
Uta Naether, Rodrigo A. Vicencio, and Milutin Stepi\'c
nlin.PS physics.optics