Niimerical modeling of optical pulse propagation along the fiber is studied in the paper.. Pdse propagation is described using nonlinear Schrodinger equation and two numerical models, finite difference method and psetidospectral method, are considered. The developed models are tested concerning lhe accuracy of simiilation results and time needed for the simulations. The finite-differences model is chosen as more acciirate one. The influence of selected boundary conditions on program acciiracy is disotssed and the recommendations for their use are given.
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