A family of Nyquist pulses for coherent optical communications

A family of Nyquist pulses for coherent optical communications

A new family of Nyquist pulses for coherent optical single carrier systems is introduced and is shown to increase the nonlinearity tolerance of dual-polarization (DP)-QPSK and DP-16-QAM systems. Numerical investigations for a single-channel 28 Gbaud DP-16-QAM long-haul system without optical dispers...

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Veröffentlicht in:Optics express 2012-04, Vol.20 (8), p.8397-8416
Hauptverfasser: Châtelain, Benoît, Laperle, Charles, Roberts, Kim, Chagnon, Mathieu, Xu, Xian, Borowiec, Andrzej, Gagnon, François, Plant, David V
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container_end_page 8416
container_issue 8
container_start_page 8397
container_title Optics express
container_volume 20
creator Châtelain, Benoît
Laperle, Charles
Roberts, Kim
Chagnon, Mathieu
Xu, Xian
Borowiec, Andrzej
Gagnon, François
Plant, David V
description A new family of Nyquist pulses for coherent optical single carrier systems is introduced and is shown to increase the nonlinearity tolerance of dual-polarization (DP)-QPSK and DP-16-QAM systems. Numerical investigations for a single-channel 28 Gbaud DP-16-QAM long-haul system without optical dispersion compensation indicate that the proposed pulse can increase the reach distance by 26% and 19%, for roll-off factors of 1 and 2, respectively. In multi-channel transmissions and for a roll-off factor of 1, a reach distance increase of 20% is reported. Experimental results for DP-QPSK and DP-16-QAM systems at 10 Gbaud confirm the superior nonlinearity tolerance of the proposed pulse.
doi_str_mv 10.1364/OE.20.008397
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title A family of Nyquist pulses for coherent optical communications
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