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Dispersion Compensation and Mitigation of Nonlinear Effects in 111-Gb/s WDM Coherent PM-QPSK Systems

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4 Author(s)
Curri, V. ; Dipt. di Elettron., Politec. di Torino, Turin ; Poggiolini, P. ; Carena, A. ; Forghieri, F.

We carried out an extensive simulative analysis to investigate in depth the potential of electronic dispersion compensation (EDC) in amplified multispan 111-Gb/s wavelength- division-multiplexed systems based on polarization-multiplexed quadrature phase-shift keying modulation with coherent detection, also in the presence of substantial fiber nonlinearity. For typical single-mode and nonzero dispersion-shifted fibers, our results show that the use of inline optical dispersion management is always suboptimal versus using EDC at the receiver.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 17 )