H2020Индивидуална стипендия2018–2020

OMICRON · Optical transmission based on integrability and nonlinear Fourier transform

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2018-01-12 → 2020-01-11
Финансиране от ЕС: 195 455 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Нелинейното Фурие трансформации се прилагат в оптичните комуникации, за да се намалят смущенията при преноса на данни по оптични влакна. Това е важно, защото нарастващият интернет трафик изисква по-висока скорост и качество на връзката, които сега са ограничени от физичните свойства на кабелите.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Optical transmission based on integrability and nonlinear Fourier transform

"OMICRON is focused on the application of a new advanced mathematical tool – nonlinear Fourier transform (NFT) – in optical communication systems, to bridge that powerful mathematical method with the practical needs arising in optical communication, in particular – for the purpose of nonlinearity mitigation. The motivation to undertake this study is as follows. The exponential surge in global data traffic driven by the proliferation of bandwidth-hungry online services (cloud computing, on-demand HD video streams, etc.) results in the escalating pressure on the speed and quality of information flows interconnecting network participants. The “Internet of Things”, in which consumer and sensor devices will be connected to the Internet, has a projected number of 50 billion devices by 2021. Even without new services, current growth rates are greater than 20% per year. A breakthrough in the functioning of communication networks has been the compensation of the linear dispersion. In the next step, noise and nonlinearity are becoming the key factors that limit the performance of future transmission systems. The alarming observation that the spectral efficiency of fibre channels is limited when using current techniques, and starts to decay at high signal powers due to nonlinearity. It was predicted that within the next decade the existing optical fibre technology will approach the “nonlinear transmission limit"" which caps the achievable rate of error-free data transmission. Therefore, radical innovations and alternative solutions to the functioning mechanism of optical networks are unavoidable. That is exactly why the NFT was proposed as a novel tool for designing effectively nonlinearity-free communication systems to combat the nonlinear impairments. The schematic representation of NFT-based transmission system is given in Fig.1, showing operations of Inverse/Direct NFT and the possibility to use continuous spectrum and solitons as data carriers. The project posed the goal of developing an efficacious solution to overcome limits imposed by the fibre nonlinearity on the capacity of optical transmission systems, by using the NFT signal decomposition and employing the parameters of resulting nonlinear modes as data carriers. On the physical level, the main factor limiting the performance of current NFT-based optical communications is the signal-noise interference occurring in the nonlinear Fourier domain. The study of noise and building the model is, thus, of paramount importance for both the performance optimisation and for the capacity estimation."

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Optical fibre systems form the backbone of global telecommunication networks and carry the bulk of the world's data traffic, serving as a key component of information and communication technology. Although over the years, these systems have become increasingly complex, the quality of optical system performance is still affected by the same key physical features: chromatic dispersion, fiber Kerr nonlinearity, and optical noise. Most of the current optical networks exploit the techniques that were originally developed for linear channels. Thus, it is not surprising that nonlinearity has a detrimental impact on such systems. It has been predicted that, within the next decade the existing optical fibre technology will approach the ""nonlinear transmission limit'', which caps the achievable rate of error-free data transmission. Thus, in order to reach a the higher capacity of optical fibres it is necessary to shift the relevant information and communications technology paradigm by introducing truly nonlinear modulation, transmission, and signal processing techniques. The aim of this project is to develop ground-breaking visionary concepts and approaches to unlock the capacity of fiber-optic communications beyond the limits of current technology by treating optical fiber as the inherently nonlinear medium it is. Our paradigm-shifting approach is based on the concept mathematical notion of integrability and the related nonlinear Fourier transform-type processing of optical signal, which allow us to use of the fibre nonlinearity in a constructive way. This multidisciplinary project, grouping together the mathematical theory of intergability, advanced signal processing, the physics of nonlinear waves evolution, solitons, and noise interaction with nonlinear excitations, combined with the optical transmission methods and purposes, is aimed at the development of fundamentally new communication technologies to satisfy current and future technology challenges.""

Оригинален текст от CORDIS (на английски).

Участници

ASTON UNIVERSITY · BirminghamКоординаторОбединеното кралство