Phase noise tolerant wavelength conversion of Tb/s Nyquist-WDM superchannels based on 64-QAM and using FWM in SOAs

We present results of all-optical wavelength conversion of a 1.008 Tb/s 6×28 Gbaud Nyquist-WDM superchannel based on 64-QAM using four-wave mixing in in a semiconductor optical amplifier. We employ the phase noise tolerant dual-correlated pumping scheme to eliminate phase noise transfer from the pumps to the converted 64-QAM superchannel and thus achieving minimal implementation OSNR penalty of 2.5 dB.