Pulse-shaping versus digital backpropagation in 224Gbit/s PDM-16QAM transmission | Zendy

Carsten Behrens | Zendy; Sergejs Makovejs | Zendy; Robert I. Killey | Zendy; Seb J. Savory | Zendy; Ming Chen | Zendy; Polina Bayvel | Zendy

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Pulse-shaping versus digital backpropagation in 224Gbit/s PDM-16QAM transmission

Author(s) -

Carsten Behrens,

Sergejs Makovejs,

Robert I. Killey,

Seb J. Savory,

Ming Chen,

Polina Bayvel

Publication year - 2011

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.012879

Subject(s) - optics , quadrature amplitude modulation , wavelength division multiplexing , transmission (telecommunications) , polarization division multiplexing , physics , wavelength , computer science , telecommunications , bit error rate , channel (broadcasting)

We investigate the transmission performance of 224Gbit/s polarization-division-multiplexed 16-state quadrature amplitude modulation (PDM-16QAM) for systems employing standard single mode fiber (SSMF) and erbium doped fiber amplifiers (EDFAs). We consider the effectiveness of return-to-zero (RZ) data pulses with varying duty cycles and digital backpropagation (DBP) in reducing nonlinear distortion in wavelength-division- multiplexed (WDM) links with 3, 5, 7 and 9 channels. Similar improvement in transmission reach of 18-25% was achieved either by pulse-carving at the transmitter or by DBP, yielding maximum transmission distances of up to 1760km for RZ-pulse-shapes and 1280km for NRZ.

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