Abstract
Transmission of 5×62 Gbit/s polarization multiplexed coherent OFDM is demonstrated over 80 km SSMF. Using 64-QAM and 16-QAM simultaneously allows reducing the channel spacing and makes a net spectral efficiency of 7.2 bit/s/Hz possible.
© 2010 IEEE Communications Society, IEEE Photonics Society, OSA, Telcordia
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