Optical comb and filter bank (De)Mux enabling 1 Tb/s orthogonal sub-band multiplexed CO-OFDM free of ADC/DAC limits

Realizations of 100–1000Gb/s CO-OFDM are hindered by electronic ADC/DAC rates. By (de)multiplexing the OFDM sub-bands by means of optical-comb generators with repetition rate matched to sub-band separation, we eliminate complex RF up/down-converters and relieve ADC/DAC requirements.