Study of the propagation of solitary waves produced by an assembly of quantum dots through optical fibers.

Abstract

In this paper, the potential use of stacked layers of semiconducting nanostructures (stacked-layer structure) as optical field sources to optimize the propagation of pulses without losses along nonlinear optical fibers was studied. During this research, we propose the external excitation of stacked layers of semiconductor quantum dots SQDs through an optical source that allows the generation of solitonic waves that are propagated through an optical fiber with non-linear optical characteristics. Theoretically, the soliton formation is studied from the nonlinear interaction between the SQDs and the external optical excitation, considering it as a quantum system of three energy levels. In the study, the non linear Schrödinger NLSE equation is solved numerically using the Fourier Split-Step method to understand the evolution of the soliton emitted by the SQDs inside an optical fiber with real physical parameters.