Improving Achievable Information Rates of 64-GBd PDM-64QAM by Nonlinear Transmitter Predistortion

Robert Elschner,Robert Emmerich,Carsten Schmidt Langhorst,Felix Frey,Pablo Wilke Berenguer,Johannes Karl Fischer,Helmut Grießer,Danish Rafique,Jorg Peter Elbers,Colja Schubert

Improving Achievable Information Rates of 64-GBd PDM-64QAM by Nonlinear Transmitter Predistortion

2018

Robert Elschner
Robert Emmerich
Carsten Schmidt Langhorst
Felix Frey
Pablo Wilke Berenguer
Johannes Karl Fischer
Helmut Grießer
Danish Rafique
Jorg Peter Elbers
Colja Schubert

We assess the gains in achievable information rate for 64-GBd PDM-64QAM signal transmission with Volterra-based digital predistortion of nonlinear transmitter components and show an improvement of up to 0.6 bit/4D-symbol over conventional linear predistortion.

Keywords:

Quadrature amplitude modulation
Transmitter
Signal processing
Transmission (telecommunications)
Nonlinear system
Modulation
Electronic engineering
Code rate
Predistortion
Engineering
optical signal to noise ratio

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