Demonstration of real-time FSK light labeling using DAC-based transmitter for 400G superchannel

We developed real-time FSK light labeling system using DAC-based label superimposition. We successfully demonstrated the monitor performance of light label scheme in CDCG ROADM network with 17-cascaded-WSS for four-sub-carrier 32GBaud DP-QPSK superchannel.