High-order modulation on a single discrete eigenvalue for optical communications based on nonlinear Fourier transform

T Gui, C Lu, APT Lau, PKA Wai - Optics express, 2017 - opg.optica.org
In this paper, we experimentally investigate high-order modulation over a single discrete
eigenvalue under the nonlinear Fourier transform (NFT) framework and exploit all degrees …

Alternative decoding methods for optical communications based on nonlinear Fourier transform

T Gui, TH Chan, C Lu, APT Lau… - Journal of Lightwave …, 2017 - opg.optica.org
Long-haul optical communications based on nonlinear Fourier Transform have gained
attention recently as a new communication strategy that inherently embrace the nonlinear …

Dual-polarization nonlinear Fourier transform-based optical communication system

S Gaiarin, AM Perego, EP da Silva, F Da Ros, D Zibar - Optica, 2018 - opg.optica.org
New services and applications are causing an exponential increase in Internet traffic. In a
few years, the current fiber optic communication system infrastructure will not be able to …

Impact of optical phase conjugation on the nonlinear Shannon limit

AD Ellis, MAZ Al Khateeb… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
Compensation of the detrimental impacts of nonlinearity on long-haul wavelength division
multiplexed system performance is discussed, and the difference between transmitter …

Dual-polarization NFDM transmission with continuous and discrete spectral modulation

F Da Ros, S Civelli, S Gaiarin, EP Da Silva… - Journal of Lightwave …, 2019 - opg.optica.org
Nonlinear distortion experienced by signals during their propagation through optical fibers
strongly limits the throughput of optical communication systems. Recently, a strong research …

Multi-dimensional permutation-modulation format for coherent optical communications

S Ishimura, K Kikuchi - Optics express, 2015 - opg.optica.org
We introduce the multi-dimensional permutation-modulation format in coherent optical
communication systems and analyze its performance, focusing on the power efficiency and …

High-dimensional modulation for coherent optical communications systems

DS Millar, T Koike-Akino, SÖ Arık, K Kojima… - Optics express, 2014 - opg.optica.org
In this paper, we examine the performance of several modulation formats in more than four
dimensions for coherent optical communications systems. We compare two high …

Faster-than-Nyquist and beyond: how to improve spectral efficiency by accepting interference

G Colavolpe, T Foggi, A Modenini, A Piemontese - Optics express, 2011 - opg.optica.org
We investigate the application of time and frequency packing techniques, an extension of
the classical faster-than-Nyquist signaling, to long-haul optical links. These techniques …

Information transmission using the nonlinear Fourier transform, Part III: Spectrum modulation

MI Yousefi, FR Kschischang - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
Motivated by the looming capacity crunch in fiber-optic networks, information transmission
over such systems is revisited. Among numerous distortions, interchannel interference in …

Multi-symbol digital signal processing techniques for discrete eigenvalue transmissions based on nonlinear Fourier transform

G Zhou, L Sun, C Lu, APT Lau - Journal of Lightwave technology, 2021 - opg.optica.org
Optical communications based on Nonlinear Fourier Transform (NFT) and digital coherent
transceivers are proposed as a new theoretical framework for communications over the …