Abstract

Employing Nyquist-pulse-shaped PDM-32QAM modulation and both pre- and post-transmission digital equalization, we demonstrate 50GHz-spaced, 8×450Gbits/s DWDM transmission over 4×100km of ultra-large-area fiber and one 50GHz-grid WSS-based ROADM at 8.37b/s/Hz spectral efficiency.

© 2011 Optical Society of America

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