Transmission of a 1.1 Tb/s Super Channel in 100 GHz Optical Bandwidth Based on PM-256 QAM and Spatially Coupled FEC
22 September 2013
We demonstrate generation and transmission of PM-256 QAM signals at a symbol rate of 14.1 GBd in a 20-GHz channel grid WDM scheme as a 1.1 Tb/s super channel. Application of spatially coupled LDPC coding with iterative demodulation reduces the required FEC overhead down to 21 % compared to non-iterative schemes.
