Digital backpropagation for spectrally efficient WDM 112 Gbit / s PM mary QAM transmission

@inproceedings{Rafique2011DigitalBF,
  title={Digital backpropagation for spectrally efficient WDM 112 Gbit / s PM mary QAM transmission},
  author={Danish Rafique and Jian Zhao and Andrew D. Ellis},
  year={2011}
}
We report the performance of coherently-detected nine-channel WDM transmission over high dispersion fibers, using polarization multiplexed m-ary quadrature amplitude modulation (m = 4, 16, 64, 256) at 112 Gbit/s. Compensation of fiber nonlinearities via digital backpropagation enables up to 10 dB improvement in maximum transmittable power and ~8 dB Qeff improvement which translates to a nine-fold enhancement in transmission reach for PM-256QAM, where the largest improvements are associated with… CONTINUE READING

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