Single-carrier 400G interface and 10-channel WDM transmission over 4800 km using all-ETDM 107-Gbaud PDM-QPSK

17 March 2013

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We transmit all-electronically multiplexed 107-Gbaud polarization multiplexed quadrature-phase-shift-keying over 4800 km using coherent detection based on a real-time oscilloscope with 63-GHz electronic bandwidth. Ten WDM channels on a 120-GHz grid yield a spectral efficiency of 3.3 b/s/Hz.