Title :
Transmission of a 1.1 Tb/s super channel in 100 GHz optical bandwidth based on PM-256 QAM and spatially coupled FEC
Author :
Dischler, R. ; Schmalen, Laurent
Author_Institution :
Alcatel-Lucent Bell Labs., Stuttgart, Germany
Abstract :
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.
Keywords :
demodulation; iterative decoding; optical modulation; parity check codes; quadrature amplitude modulation; wavelength division multiplexing; PM 256 QAM; channel grid WDM; frequency 100 GHz; frequency 20 GHz; iterative demodulation; optical bandwidth; spatially coupled FEC; spatially coupled LDPC coding; super channel;
Conference_Titel :
Optical Communication (ECOC 2013), 39th European Conference and Exhibition on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-759-5
DOI :
10.1049/cp.2013.1391
