Fig. 6

SNR versus frequency for 25-Gbaud signals with a 10% frequency gap, a 60-ps optical delay, an 8-dB CSPR, and a 30-dB OSNR

SNR versus frequency for 25-Gbaud signals with a 10% frequency gap, a 60-ps optical delay, an 8-dB CSPR, and a 30-dB OSNR