Abstract
We present an extensive numerical investigation on the interaction dynamics of optical bright solitons in asymmetric nonlinear directional couplers taking into account the effects of group velocity mismatch, phase-velocity mismatch and differences in group velocity dispersions and effective mode areas between two cores. We also numerically explore the stability of bright solitons in the presence of harmonic infinitesimal perturbation, which is seeded in the form of uniform white noise. To have a comprehensive picture, we finally emphasize the influence of every individual asymmetric parameters on the soliton interaction in asymmetric nonlinear directional couplers.
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