Experimental Verification of 400G 64QAM Using 4 Bits DACs Enabled by Digital Resolution Enhancer Academic Article uri icon


  • Employing DACs with low resolution plays a significant role in reducing the transponder power consumption. We experimentally verified the benefit of a digital resolution enhancer by transmitting WDM 400G-64QAM using a 4 physical bits DAC over DCI distances.

publication date

  • January 1, 2018