Coherent soliton propagation through doped optical fibers: cloning, breakup, and soliton interactions

The simultaneous propagation of two optical pulses through a doped nonlinear dispersive medium modelled by a resonant three-level system was investigated numerically, within the framework of a pair of coupled extended nonlinear Schrödinger equations. These included the contribution of the dopant resonances whose dynamics is governed by Bloch equations. In this work, we review the interesting possibilities on the manipulation of fields such as cloning, breakup and soliton interactions, that the combination of coherent population trapping with nonlinear dispersive media offers

Observation of Spatial Shift in Interaction of Dark Nonlocal Solitons

We study experimentally and theoretically a two-dimensional interaction of dark solitons in thermal defocusing medium. We report on the experimental observation of a spatial shift occurring at the intersection of obliquely interacting dark solitons. Numerical modeling reveals that this new effect is due to the nonlocal character of thermal nonlinearity

Oblique interaction of spatial dark-soliton stripes in nonlocal media

We report what we believe to be the first experimental observation of a large spatial lateral shift in the interaction of obliquely oriented spatial dark-soliton stripes. We demonstrate by numerical simulations that this new effect can be attributed to the specific features of optical media with a nonlocal nonlinear response.D. P. Caetano, J. M. Hickman, and S. ChavezCerda acknowledge the support from the Instituto do Milênio de Informação Quântica, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Programa de Apoio ao Desenvolvimento Científico e Tecnológico, and Nanofoton