Femtosecond-Soliton Switching in a Three-Core Coupler

Abstract

Soliton switching in a three-core Kerr-coupler is studied numerically by taking into account intermodal dispersion (IMD), third-order dispersion and higher-order nonlinear effects, like the Raman and self-steepening effects. It is shown that the weak coupling regime is the most suitable for the purpose. Also, it is shown that IMD has negligible influence on switching, while, out of the higher-order nonlinear effects, Raman intrapulse scattering has the dominant effect.