N
Nikita A. Shevchenko
Researcher at University of Cambridge
Publications - 37
Citations - 476
Nikita A. Shevchenko is an academic researcher from University of Cambridge. The author has contributed to research in topics: Optical communication & Modulation. The author has an hindex of 9, co-authored 30 publications receiving 324 citations. Previous affiliations of Nikita A. Shevchenko include University College London & National Academy of Sciences of Ukraine.
Papers
More filters
Journal ArticleDOI
Maximizing the optical network capacity
Polina Bayvel,Robert Maher,Tianhua Xu,Gabriele Liga,Nikita A. Shevchenko,Domanic Lavery,Alex Alvarado,Robert I. Killey +7 more
TL;DR: In this article, the capacity of the optical fiber channel has been investigated in the nonlinear regime and the intensity-dependent Kerr nonlinearity limit has been suggested as a fundamental limit to optical fiber capacity.
Journal ArticleDOI
Achievable information rates estimates in optically amplified transmission systems using nonlinearity compensation and probabilistic shaping
Daniel Semrau,Tianhua Xu,Nikita A. Shevchenko,Milen Paskov,Alex Alvarado,Robert I. Killey,Polina Bayvel +6 more
TL;DR: In this article, the achievable information rates of a wideband optical communication system using a ∼40"nm"n"d" erbium-doped fiber amplifier and ∼100"nm") distributed Raman amplification are estimated based on a first-order perturbation analysis.
Journal ArticleDOI
Modulation format dependence of digital nonlinearity compensation performance in optical fibre communication systems.
Tianhua Xu,Nikita A. Shevchenko,Domanic Lavery,Daniel Semrau,Gabriele Liga,Alex Alvarado,Robert I. Killey,Polina Bayvel +7 more
TL;DR: It is shown that the minimum number of steps per span required for MC-DBP depends on the chosen modulation format, and for any given target information rate, there exists a possible trade-off between modulation format and back-propagated bandwidth, which could be used to reduce the computational complexity requirement of MC- DBP.
Proceedings ArticleDOI
A Simple Nonlinearity-Tailored Probabilistic Shaping Distribution for Square QAM
Eric Sillekens,Daniel Semrau,Gabriele Liga,Nikita A. Shevchenko,Zhe Li,Alex Alvarado,Polina Bayvel,Robert I. Killey,Domanic Lavery +8 more
TL;DR: In this paper, a probabilistic shaping distribution that outperforms the Maxwell Boltzmann distribution for the nonlinear fiber channel was proposed and further gains of 0.1 bit/symbol MI or 0.2 dB SNR were reported for both DP-256QAM and DP-1024QAM.
Journal ArticleDOI
Nonlinear Coherent Optical Systems in the Presence of Equalization Enhanced Phase Noise
TL;DR: In this paper, a general expression accounting for EEPN is presented based on Gaussian noise model to evaluate the performance of multi-channel optical communication systems using EDC and digital nonlinearity compensation (NLC).