1.11 Tb/s/lambda and 18.9 Tb/s WDM transmission over DCI distances supported by CMOS DACs
We report on the optimization of a CMOS DAC transmitter based coherent system supporting bitrates beyond 1 Tb/s. We demonstrate WDM transmission over DCI distances up to 118 km at spectral efficiencies of 9.9 bit/s/Hz