Abstract
The impact of frequency referenced WDM source on the performance of dual polarization multi-channel digital backpropagation (MC-DBP) is experimentally investigated up to 4000 km of transmission. For a system with 4 × 8 GBd DP-QPSK, such approach allows 0.6 dB more MC-DBP Q2-factor gain in the nonlinear regime, compared with an unreferenced scheme.
© 2016 Optical Society of America
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