Figure 4

The OSNR margin at the receiver. The OSNR margin of (a) 100 Gbit/s PM-QPSK signal, (b) 200 Gbit/s PM-QPSK signal, (c) 200 Gbit/s PM-16QAM signal, and (d) 400 Gbit/s PM-16QAM signal after transmission over the G.652.D fiber and the G.654.E fiber, respectively.