Abstract

Mathematical models for description of physical phenomena often use the statistical description of the individual phenomena and solve those using suitable methods. If we want to develop numerical model of optical communication system based on transmission through single mode optical fibres, we need to consider whole series of phenomena that affect various parts of the system. In the single-mode optical fibre we often encounter influence of chromatic dispersion and nonlinear Kerr effects. By observing various different degradation mechanisms, every numerical model should have its own limits, which fulfil more detailed specification. It is inevitable to consider them in evaluation. In this paper, we focus on numerical modelling of degradation mechanisms in single-mode optical fibre. Numerical solution of non-linear Schroedinger equation is performed by finite difference method applied in MATLAB environment and split-step Fourier method, which is implemented by VPIphotonics software.

Highlights

  • Development of technologies and the related growth of requirements on transmission capacity of optical communication systems leads to development and implementation of new technologies

  • Propagation of the optical pulse in single-mode optical fibres (SMF) fibre usually described by the nonlinear Schroedinger differential equation (NLSE) [1], [3]

  • We present results of application of finite difference method (FDM) method and split-step Fourier method (SSFM) method for numerical modelling of degradation mechanisms in SMF fibre

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Summary

Introduction

Development of technologies and the related growth of requirements on transmission capacity of optical communication systems leads to development and implementation of new technologies. Numerical modelling becomes inevitable for research and design of new devices and systems [1], [2]

Theory
SSFM Method
FDM Method
Experiments
Conclusion
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