147.4 Tb/s DP-64QAM MDM-WDM Transmission over 500-km FMF utilizing MIMO Equalization Based on Multi-Label Neural Network

In this work, we experimentally demonstrated MDM-WDM transmission of 4 modes × 80 WDM channels × 48 GBd PDM-64-QAM signals over 500 km of strongly coupled FMF with the aid of multi-label based multi-input multi-output neural network equalization (MIMO-NNE). The resulting net bit rate of 147.4 Tb/s and the 25% reach improvement comparing to traditional MIMO-LMS show great potential of MIMO-NNE in SDM systems.