Bi-directional gated recurrent unit neural network based nonlinear equalizer for coherent optical communication system

X Liu, Y Wang, X Wang, H Xu, C Li, X **n - Optics Express, 2021 - opg.optica.org
We propose a bi-directional gated recurrent unit neural network based nonlinear equalizer
(bi-GRU NLE) for coherent optical communication systems. The performance of bi-GRU NLE …

Transfer learning simplified multi-task deep neural network for PDM-64QAM optical performance monitoring

Y Cheng, W Zhang, S Fu, M Tang, D Liu - Optics express, 2020 - opg.optica.org
We experimentally demonstrate a transfer learning (TL) simplified multi-task deep neural
network (MT-DNN) for joint optical signal-to-noise ratio (OSNR) monitoring and modulation …

Computational complexity comparison of feedforward/radial basis function/recurrent neural network-based equalizer for a 50-Gb/s PAM4 direct-detection optical link

Z Xu, C Sun, T Ji, JH Manton, W Shieh - Optics express, 2019 - opg.optica.org
The computational complexity and system bit-error-rate (BER) performance of four types of
neural-network-based nonlinear equalizers are analyzed for a 50-Gb/s pulse amplitude …

Low-complexity pruned convolutional neural network based nonlinear equalizer in coherent optical communication systems

X Liu, C Li, Z Jiang, L Han - Electronics, 2023 - mdpi.com
Nonlinear impairments caused by devices and fiber transmission links in a coherent optical
communication system can severely limit its transmission distance and achievable capacity …

Low-complexity fiber nonlinearity impairments compensation enabled by simple recurrent neural network with time memory

Y Zhao, X Chen, T Yang, L Wang, D Wang… - IEEE …, 2020 - ieeexplore.ieee.org
In this paper, we propose and demonstrate a low-complexity fiber nonlinearity impairments
compensation (NLC) scheme based on simple recurrent neural network (SRNN), combining …

Interference modeling and joint demodulation receiver for multi-level PON with baseband AMCC superimposition

H Guo, C Yang, Y Gao, H Li - Journal of Lightwave Technology, 2024 - opg.optica.org
Auxiliary management and control channel (AMCC) has been defined in ITU-T standards for
efficient deployment of a wavelength division multiplexing passive optical network (WDM …

Gaussian mixture model-hidden Markov model based nonlinear equalizer for optical fiber transmission

F Tian, Q Zhou, C Yang - Optics express, 2020 - opg.optica.org
The demand for high speed data transmission has increased rapidly over the past few years,
leading to the development of the data center concept. As is known, nonlinear effects in …

Blind modulation format identification using differential phase and amplitude ratio

Q Tan, A Yang, P Guo - IEEE Photonics Journal, 2019 - ieeexplore.ieee.org
We propose a blind digital modulation format identification (MFI) method for coherent optical
fiber communication systems. Based on the evaluation of differential phase distribution ratio …

Joint fiber nonlinear noise estimation, OSNR estimation and modulation format identification based on asynchronous complex histograms and deep learning for digital …

S Yang, L Yang, F Luo, B Li, X Wang, Y Du, D Liu - Sensors, 2021 - mdpi.com
In this paper, asynchronous complex histogram (ACH)-based multi-task artificial neural
networks (MT-ANNs), are proposed to realize modulation format identification (MFI), optical …

Real-time 15GBaud QPSK and 16QAM Flexible Coherent Optical Receiver Implemented on a Single FPGA Chip with Low Complexity DSP

J Sun, J Song, Y Li, J Qiu, Y Zuo, W Li… - 2023 4th Information …, 2023 - ieeexplore.ieee.org
We demonstrate real-time flexible coherent optical receiver based on a single FPGA chip,
which uses a set of digital signal processing (DSP) algorithms with low complexity to realize …