A closed-form approximation of the Gaussian noise model in the presence of inter-channel stimulated Raman scattering

D Semrau, RI Killey, P Bayvel - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
An accurate, closed-form expression evaluating the nonlinear interference (NLI) power in
coherent optical transmission systems in the presence of inter-channel stimulated Raman …

The Gaussian noise model in the presence of inter-channel stimulated Raman scattering

D Semrau, RI Killey, P Bayvel - Journal of Lightwave Technology, 2018 - opg.optica.org
A Gaussian noise (GN) model, precisely accounting for an arbitrary frequency dependent
signal power profile along the link, is presented. This allows accurate evaluation of the …

A modulation format correction formula for the Gaussian noise model in the presence of inter-channel stimulated Raman scattering

D Semrau, E Sillekens, RI Killey… - Journal of Lightwave …, 2019 - opg.optica.org
A closed-form formula is derived, which corrects for the modulation format dependence of
the Gaussian noise (GN) model in the presence of inter-channel stimulated Raman …

Information rates in Kerr nonlinearity limited optical fiber communication systems

T Xu, NA Shevchenko, Y Zhang, C Jin, J Zhao, T Liu - Optics Express, 2021 - opg.optica.org
Achievable information rates of optical communication systems are inherently limited by
nonlinear distortions due to the Kerr effect occurred in optical fibres. These nonlinear …

Modulation format dependence of digital nonlinearity compensation performance in optical fibre communication systems

T Xu, NA Shevchenko, D Lavery, D Semrau, G Liga… - Optics express, 2017 - opg.optica.org
The relationship between modulation format and the performance of multi-channel digital
back-propagation (MC-DBP) in ideal Nyquist-spaced optical communication systems is …

Analytical optimization of wideband nonlinear optical fiber communication systems

Z Liu, T Xu, C Jin, T Xu, M Tan, J Zhao, T Liu - Optics Express, 2022 - opg.optica.org
In the design of fiber links for both continental and transoceanic optical communication
systems, the optimization of span length is of high importance from both performance and …

A closed-form expression to evaluate nonlinear interference in Raman-amplified links

D Semrau, G Saavedra, D Lavery, RI Killey… - Journal of Lightwave …, 2017 - opg.optica.org
An accurate, closed-form expression to evaluate the nonlinear interference (NLI) noise
power in Nyquist-spaced, coherent optical communication systems using backward-pumped …

Modelling the delayed nonlinear fiber response in coherent optical communications

D Semrau, E Sillekens, RI Killey… - Journal of Lightwave …, 2020 - ieeexplore.ieee.org
Fiber nonlinearities, that lead to nonlinear signal distortion, are normally considered to be
the result of an instantaneous material response with respect to the optical field. However, in …

Digital back-propagation for nonlinearity mitigation in distributed Raman amplified links

G Saavedra, D Semrau, L Galdino, RI Killey… - Optics …, 2017 - opg.optica.org
The performance of digital back-propagation (DBP) for distributed Raman amplified optical
communication systems is evaluated through analytical models and numerical simulations …

High-order modulation formats, constellation design, and digital signal processing for high-speed transmission systems

T Xu, G Liga, P Bayvel - Optical Fiber Telecommunications VII, 2020 - Elsevier
The capacity of optical fiber communication networks is limited by the Kerr effect inherent to
transmission using optical fibers. The signal degradations due to the nonlinear distortions …