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Modeling nonlinear phase noise in differentially phase-modulated optical communication systems

: Coelho, L.D.; Molle, L.; Gross, D.; Hanik, N.; Freund, R.; Caspar, C.; Schmidt, E.-D.; Spinnler, B.

Postprint (283 KByte; PDF; )

Optics Express 17 (2009), No.5, pp.3226-3241
ISSN: 1094-4087
Journal Article, Electronic Publication
Fraunhofer HHI ()

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-Loeve expansion combined with a linearization technique of the Nonlinear Schrodinger Equation (NLSE) to account for the nonlinear interaction between signal and noise. Our numerical results show a good agreement with experiments.