no code implementations • 7 Jun 2022 • Sebastiaan Goossens, Yunus Can Gültekin, Olga Vassilieva, Inwoong Kim, Paparao Palacharla, Chigo Okonkwo, Alex Alvarado
Geometric shell shaping is introduced and evaluated for reach increase and nonlinearity tolerance in terms of MI against PM-16QAM and PS-PM-16QAM in a 400ZR compatible transmission setup.
no code implementations • 7 Jun 2022 • Sebastiaan Goossens, Yunus Can Gültekin, Olga Vassilieva, Inwoong Kim, Paparao Palacharla, Chigo Okonkwo, Alex Alvarado
Reach increase and nonlinearity tolerance are evaluated in terms of achievable information rates and post-FEC bit-error rate.
no code implementations • 11 May 2022 • Menno van den Hout, Sjoerd van der Heide, Sebastiaan Goossens, Chigo Okonkwo
A predistorter for transmitter nonlinearities is applied to the evaluation of a geometrically shaped constellation, such that constellation points are transmitted correctly during the evaluation of the geometrically shaped constellation.
no code implementations • 20 Dec 2021 • Vinícius Oliari, Boris Karanov, Sebastiaan Goossens, Gabriele Liga, Olga Vassilieva, Inwoong Kim, Paparao Palacharla, Chigo Okonkwo, Alex Alvarado
In this paper we carry out a joint optimization of probabilistic (PS) and geometric shaping (GS) for four-dimensional (4D) modulation formats in long-haul coherent wavelength division multiplexed (WDM) optical fiber communications using an auto-encoder framework.
no code implementations • 16 Aug 2021 • Sjoerd van der Heide, Ruben S. Luis, Sebastiaan Goossens, Benjamin J. Puttnam, Georg Rademacher, Ton Koonen, Satoshi Shinada, Yoshinari Awaji, Alex Alvarado, Hideaki Furukawa, Chigo Okonkwo
A software-defined optical receiver is implemented on an off-the-shelf commercial graphics processing unit (GPU).
no code implementations • 20 Jul 2020 • Vinícius Oliari, Sebastiaan Goossens, Christian Häger, Gabriele Liga, Rick M. Bütler, Menno van den Hout, Sjoerd van der Heide, Henry D. Pfister, Chigo Okonkwo, Alex Alvarado
One guiding principle for previous work on the design of practical nonlinearity compensation schemes is that fewer steps lead to better systems.