High dynamic range 100G PON enabled by SOA preamplifier and recurrent neural networks

SL Murphy, F Jamali, PD Townsend… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
In recent years the PON research community has focused on future systems targeting 100
Gb/s/and beyond, with digital signal processing seen as a key enabling technology …

FPGA implementation of multi-layer machine learning equalizer with on-chip training

K Liu, E Börjeson, C Häger… - Optical Fiber …, 2023 - opg.optica.org
We design and implement an adaptive machine learning equalizer that alternates multiple
linear and nonlinear computational layers on an FPGA. On-chip training via gradient …

Unsupervised ANN-based equalizer and its trainable FPGA implementation

J Ney, V Lauinger, L Schmalen… - 2023 Joint European …, 2023 - ieeexplore.ieee.org
In recent years, communication engineers put strong emphasis on artificial neural network
(ANN)-based algorithms with the aim of increasing the flexibility and autonomy of the system …

Multichannel Nonlinear Equalization in Coherent WDM Systems Based on Bi-Directional Recurrent Neural Networks

S Deligiannidis, KRH Bottrill, K Sozos… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Kerr nonlinearity in the form of self-and cross-phase modulation imposes a fundamental
limitation to the capacity of wavelength division multiplexed (WDM) optical communication …

FPGA Implementation of Power-Lite Volterra-Inspired Neural Network Equalizer in 100G PON

W Jiang, L Huang, Y Xu, W Hu… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Electronic nonlinear equalization is a promising technology to compensate for signal
impairments in passive optical networks (PONs). However, the high complexity of nonlinear …

Combining Optical and Digital Compensation: Neural Network-Based Channel Equalisers in Dispersion-Managed Communications Systems

K Nurlybayeva, M Kamalian-Kopae… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Machine learning methods, including artificial neural networks, used for mitigation of
nonlinear transmission impairments in ultra-long-haul and long-haul unmanaged fibre-optic …

Impact of Super-Gaussian Distribution on System Gain of Probabilistic Shaping 64QAM

Z Sun, D Tang, Y Jiang, Z Wu… - 2023 Opto-Electronics and …, 2023 - ieeexplore.ieee.org
We investigated the gain provided by optimal-super-Gaussian in the DP-PCS-64QAM
system. Results indicate that the maximum 0.24/0.18/0.15-dB Q^2 factor gain is achieved …

Real-Time FPGA Demonstrator of ANN-Based Equalization for Optical Communications

J Ney, P Matalla, V Lauinger, L Schmalen… - arXiv preprint arXiv …, 2024 - arxiv.org
In this work, we present a high-throughput field programmable gate array (FPGA)
demonstrator of an artificial neural network (ANN)-based equalizer. The equalization is …

Overfitting problem of ANN-and VSTF-based nonlinear equalizers trained on repeated random bit sequences

K Ikuta, J Nakamura, M Nakamura - IEICE Transactions on …, 2024 - search.ieice.org
In this paper, we investigated the overfitting characteristics of nonlinear equalizers based on
an artificial neural network (ANN) and the Volterra series transfer function (VSTF), which …

Hardware Realization of Nonlinear Activation Functions for NN-based Optical Equalizers

S Srivallapanondh, PJ Freire, A Napoli… - CLEO: Science and …, 2023 - opg.optica.org
Hardware Realization of Nonlinear Activation Functions for NN-based Optical Equalizers
Page 1 Hardware Realization of Nonlinear Activation Functions for NN-based Optical …