Title :
Experimental analysis of nonlinear interference noise in heterogeneous flex-grid WDM transmission
Author :
Carsten Schmidt-Langhorst;Robert Elschner;Felix Frey;Robert Emmerich;Colja Schubert
Author_Institution :
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, Einsteinufer 37, 10587 Berlin, Germany
Abstract :
We transmit a 28-GBd Nyquist PDM-16QAM channel with WDM-interferers (37.5-GHz grid) over 80-km SSMF spans. Interference noise analysis reveals substantial nonlinear phase noise for PDM-16QAM interferers compared to PDM-4QAM, while Q-penalty is kept small by appropriate CPE.
Keywords :
"Bit error rate","Phase noise","Wavelength division multiplexing","Modulation","Interference","Digital signal processing","Optical filters"
Conference_Titel :
Optical Communication (ECOC), 2015 European Conference on
DOI :
10.1109/ECOC.2015.7341918
