On probabilistic shaping of quadrature amplitude modulation for the nonlinear fiber channel

T Fehenberger, A Alvarado… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
Different aspects of probabilistic shaping for a multispan optical communication system are
studied. First, a numerical analysis of the additive white Gaussian noise (AWGN) channel …

Sensitivity gains by mismatched probabilistic shaping for optical communication systems

T Fehenberger, D Lavery, R Maher… - IEEE Photonics …, 2016 - ieeexplore.ieee.org
Probabilistic shaping of quadrature amplitude modulation (QAM) is used to enhance the
sensitivity of an optical communication system. Sensitivity gains of 0.43 and 0.8 dB are …

[HTML][HTML] Increasing the information rates of optical communications via coded modulation: a study of transceiver performance

R Maher, A Alvarado, D Lavery, P Bayvel - Scientific reports, 2016 - nature.com
Optical fibre underpins the global communications infrastructure and has experienced an
astonishing evolution over the past four decades, with current commercial systems …

Impact of 4D channel distribution on the achievable rates in coherent optical communication experiments

TA Eriksson, T Fehenberger… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
We experimentally investigate mutual information and generalized mutual information for
coherent optical transmission systems. The impact of the assumed channel distribution on …

Information rates of next-generation long-haul optical fiber systems using coded modulation

G Liga, A Alvarado, E Agrell… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
A comprehensive study of the coded performance of long-haul spectrally-efficient WDM
optical fiber transmission systems with different coded modulation decoding structures is …

Group delay management and multiinput multioutput signal processing in mode-division multiplexing systems

SÖ Arık, KP Ho, JM Kahn - Journal of Lightwave Technology, 2016 - ieeexplore.ieee.org
Multi-input multi-output (MIMO) digital signal processing (DSP) for mode-division
multiplexing (MDM) may have high complexity, owing to a plurality of modes and a …

Performance prediction of nonbinary forward error correction in optical transmission experiments

L Schmalen, A Alvarado… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
In this paper, we compare different metrics to predict the error rate of optical systems based
on nonbinary forward error correction (FEC). It is shown that an accurate metric to predict the …

On the impact of optimal modulation and FEC overhead on future optical networks

A Alvarado, DJ Ives, SJ Savory… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
The potential of optimum selection of modulation and forward error correction (FEC)
overhead (OH) in future wavelength-routed nonlinear optical mesh networks is studied from …

Amplification schemes and multi-channel DBP for unrepeatered transmission

L Galdino, M Tan, A Alvarado, D Lavery… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
The performance of unrepeatered transmission of a seven Nyquist-spaced 10 GBd PDM-
16QAM superchannel using full signal band coherent detection and multi-channel digital …

Predicting the performance of nonbinary forward error correction in optical transmission experiments

L Schmalen, A Alvarado, R Rios-Muller - Optical Fiber …, 2016 - opg.optica.org
Predicting the Performance of Nonbinary Forward Error Correction in Optical Transmission
Experiments Page 1 M2A.2.pdf OFC 2016 © OSA 2016 Predicting the Performance of …