Abstract
We demonstrated spectrally efficient (1.65-b/s/Hz) DWDM transmission of 88.8 Gb/s polarization division multiplexed coherent OFDM signals without guard interval. The record 18-concatenated 50-GHz-spaced ROADM transmission and high DGD tolerance over 120 ps were experimentally confirmed.
© 2008 Optical Society of America
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