Abstract
We transmit a 1.5-Tb/s guard-banded superchannel, consisting of eight all-electronically-generated 30-Gbaud pilot-free PDM-OFDM-16QAM signals spaced at 32.8 GHz, over 5600-km ULAF, achieving the highest spectral-efficiency-distance product of over 32,000 km⋅b/s/Hz for Tb/s-class superchannel transmission with >5 b/s/Hz net spectral efficiency.
© 2012 Optical Society of America
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