Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back-propagation

R Maher, T Xu, L Galdino, M Sato, A Alvarado, K Shi… - Scientific reports, 2015 - nature.com
The achievable transmission capacity of conventional optical fibre communication systems
is limited by nonlinear distortions due to the Kerr effect and the difficulty in modulating the …

Next generation elastic optical networks: The vision of the European research project IDEALIST

A Napoli, M Bohn, D Rafique, A Stavdas… - IEEE …, 2015 - ieeexplore.ieee.org
In this work we detail the strategies adopted in the European research project IDEALIST to
overcome the predicted data plane capacity crunch in optical networks. In order for core and …

Nonlinear decision boundary created by a machine learning-based classifier to mitigate nonlinear phase noise

D Wang, M Zhang, Z Li, Y Cui, J Liu… - 2015 European …, 2015 - ieeexplore.ieee.org
A machine learning-based classifier, namely SVM, is introduced to create the nonlinear
decision boundary in M-ary PSK-based coherent optical system to mitigate NLPN. The …

Kerr nonlinearity mitigation: mid-link spectral inversion versus digital backpropagation in 5× 28-GBd PDM 16-QAM signal transmission

I Sackey, F Da Ros, JK Fischer, T Richter… - Journal of Lightwave …, 2015 - ieeexplore.ieee.org
We experimentally investigate Kerr nonlinearity mitigation of a 28-GBd polarization-
multiplexed 16-QAM signal in a five-channel 50-GHz spaced wavelength-division …

Ultralong Haul 1.28-T b/s PM-16QAM WDM Transmission Employing Hybrid Amplification

T Rahman, D Rafique, A Napoli… - Journal of Lightwave …, 2015 - ieeexplore.ieee.org
In order to cope with the foreseeable capacity crunch next-generation optical transmission
systems aim to utilize higher order quadrature amplitude modulation formats to achieve …

Digital pre-emphasis in optical communication systems: On the nonlinear performance

D Rafique, T Rahman, A Napoli… - Journal of lightwave …, 2015 - opg.optica.org
Digital signal pre-processing at the transmitter is a key enabler for next-generation optical
transceivers. One of the major challenges faced by these transponders is the limited …

Optical Nonlinear Phase Noise Compensation for -Gbaud PolDM-16 QAM Transmission Using a Code-Aided Expectation-Maximization Algorithm

C Pan, H Bülow, W Idler, L Schmalen… - Journal of Lightwave …, 2015 - opg.optica.org
Nonlinearity-induced phase noise has become a major obstacle in long-haul coherent fiber-
optic communication systems. Such phase noise has been shown to be signal dependent …

Experimental comparison of transmission performance for Nyquist WDM and time–frequency packing

G Meloni, T Rahman, A Napoli, F Fresi… - Journal of Lightwave …, 2015 - ieeexplore.ieee.org
Several spectral efficient solutions for next-generation flexible optical networks are under
investigation in order to cope with scalability issues while traffic demand is continuously …

Optical phase conjugation for nonlinearity compensation in WDM PDM 16-QAM transmission over dispersion-compensated and dispersion-uncompensated links

F Da Ros, I Sackey, M Jazayerifar… - 2015 IEEE Summer …, 2015 - ieeexplore.ieee.org
Kerr nonlinearity compensation by optical phase conjugation is demonstrated in a WDM
PDM 16-QAM system. Improved received signal quality is reported for both dispersion …

Compensation of fiber non linear impairments using Optical Back Propagation

U Sahu, BC Jinaga - 2015 International Conference on …, 2015 - ieeexplore.ieee.org
The paper presents analysis of Kerr nonlinear impairments present in long haul Wavelength
Division Multiplexing (WDM) links and their compensation. A framework is proposed for …