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Modeling nonlinear phase noise in differentially phase-modulated optical communication systems
Leonardo D Coelho1, Lutz Molle, Dirk Gross
1Institute for Communications Engineering, Technische Universität München, D-80290 Munich, Germany. leonardo.coelho@tum.de
Abstract:
Using an alternative approach for evaluating the Bit-Error Rate (BER), we present a numerical and experimental investigation of the performance of phase-modulated optical communication systems in the presence of nonlinear phase noise and dispersion. The numerical method is based on the well known Karhunen-Lo;eve expansion combined with a linearization technique of the Nonlinear Schr odinger Equation (NLSE) to account for the nonlinear interaction between signal and noise. Our numerical results show a good agreement with experiments.
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