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Analytical Tools for Evaluating the Impact of In-Band Crosstalk in DP-QPSK Signals

Cancela, L. ; Sequeira, D. G. ; Pinheiro, B.R. ; Rebola, J. ; Pires, J. J. O.

Analytical Tools for Evaluating the Impact of In-Band Crosstalk in DP-QPSK Signals, Proc European Conf. on Networks and Optical Communications - NOC, Lisbon, Portugal, Vol. -, pp. - - -, June, 2016.

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Abstract
An analytical tool based on the moment generating function of the receiver decision variable that can evaluate the impact of multiple in-band crosstalk signals in DP-QPSK (Dual-Polarization Quadrature Phase-Shift Keying) signals is presented. It is shown that when the number of interferers increases from 1 to 64 the crosstalk level, that assure a 2dB power penalty, becomes more stringent, -12 dB for the single interferer scenario and -15 dB for 64 interferers. The Gaussian approximation is also used for comparison purposes.