Realisation of a real-time 12.1 Gb/s optical OFDM transmitter and its application in a 109 Gb/s transmission system with coherent reception

For the first time a realisation of a real-time 12.1 Gb/s FPGA-based O-OFDM transmitter is demonstrated (Q=19.1 dB) and successfully applied in a 9×12.1 Gb/s transmission over 400 km SMF.