Transmission of 5×62 Gbit/s DWDM coherent OFDM with a spectral efficiency of 7.2 Bit/s/Hz using joint 64-QAM and 16-QAM modulation

Nölle, M.M.NölleMolle, L.L.MolleGross, D.-D.D.-D.GrossFreund, R.R.Freund2022-03-112022-03-112010https://publica.fraunhofer.de/handle/publica/3693882-s2.0-779539323062-s2.0-84896858180Transmission of 5×62 Gbit/s polarization multiplexed coherent OFDM is demonstrated over 80 km SSMF. Using 64-QAM and 16-QAM simultaneously allows reducing the channel spacing and makes a net spectral efficiency of 7.2 bit/s/Hz possible.en621Transmission of 5×62 Gbit/s DWDM coherent OFDM with a spectral efficiency of 7.2 Bit/s/Hz using joint 64-QAM and 16-QAM modulationconference paper