Semiconductor optical amplifiers: recent advances and applications

A Sobhanan, A Anthur, S O'Duill, M Pelusi… - Advances in Optics …, 2022 - opg.optica.org
Owing to advances in fabrication technology and device design, semiconductor optical
amplifiers (SOAs) are evolving as a promising candidate for future optical coherent …

A Comprehensive Survey of Fiber Impairment Mitigation Technologies in High Capacity Systems

AHA Kareem, IA Murdas - 2022 Muthanna International …, 2022 - ieeexplore.ieee.org
The demand for network capacity has been steadily increasing in recent decades due to the
growth of new digital applications and services. Optical fiber supports to solve and avoid …

[HTML][HTML] Real-time machine learning based fiber-induced nonlinearity compensation in energy-efficient coherent optical networks

E Giacoumidis, Y Lin, M Blott, LP Barry - APL Photonics, 2020 - pubs.aip.org
We experimentally demonstrate the world's first field-programmable gate-array-based real-
time fiber nonlinearity compensator (NLC) using sparse K-means++ machine learning …

Improved compensation of intrachannel four-wave mixing in dispersion-managed transmission links with mid-span optical phase conjugation

W Cao - Optics Communications, 2023 - Elsevier
Recently, a novel approach to satisfy the nonlinearity compensation criteria by mid-span
optical-phase-conjugation (OPC) was proposed and excellent transmission performance …

Symmetry enhancement through advanced dispersion map** in OPC-aided transmission

PM Kaminski, F Da Ros, MP Yankov… - Journal of Lightwave …, 2021 - opg.optica.org
In this work, we present a novel strategy to satisfy the nonlinearity compensation criteria by
optical-phase-conjugation (OPC). Contrary to the most common approach, which relies on …

Lumped compensation of nonlinearities based on optical phase conjugation

PM Kaminski, F Da Ros, MP Yankov… - Journal of Lightwave …, 2022 - opg.optica.org
Compensation of Kerr nonlinearity-induced distortions has been shown to allow for
increasing transmission rate and reach, with optical compensation techniques particularly …

Linear and nonlinear noise characterisation of dual stage broadband discrete Raman amplifiers

MA Iqbal, MAZ Al-Khateeb… - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
We characterise the linear and nonlinear noise of dual stage broadband discrete Raman
amplifiers (DRAs) based on conventional Raman gain fibres. Also, we propose an optimised …

Volterra-assisted optical phase conjugation: A hybrid optical-digital scheme for fiber nonlinearity compensation

G Saavedra, G Liga, P Bayvel - Journal of Lightwave Technology, 2019 - opg.optica.org
Digital nonlinearity compensation (NLC) schemes such as digital backpropagation and
Volterra equalization are well known to be effective techniques in mitigating optical fiber …

A blind nonlinearity compensator using DBSCAN clustering for coherent optical transmission systems

E Giacoumidis, Y Lin, M Jarajreh, S O'Duill… - Applied Sciences, 2019 - mdpi.com
Coherent fiber-optic communication systems are limited by the Kerr-induced nonlinearity.
Benchmark optical and digital nonlinearity compensation techniques are typically complex …

Optically enhanced pump-phase noise in mid-link optical parametric phase conjugation

S Shimizu, M Nakamura, A Kawai, T Kazama, M Abe… - Optics …, 2024 - opg.optica.org
This paper discusses the impact of pump-phase noise in the χ^(2)-based optical parametric
amplification process on the phase-conjugated idler. We show that the dispersive fiber …