Reduced-state MLSE for an IM/DD system using PAM modulation

Y Yu, Y Che, T Bo, D Kim, H Kim - Optics express, 2020 - opg.optica.org
The performance of a high-speed intensity-modulation (IM)/direct-detection (DD)
transmission system could be limited by the bandwidth of optical transceivers. One popular …

Feedforward and recurrent neural network-based transfer learning for nonlinear equalization in short-reach optical links

Z Xu, C Sun, T Ji, JH Manton, W Shieh - Journal of Lightwave …, 2020 - opg.optica.org
Neural network (NN)-based nonlinear equalizers have been shown effective for various
types of short-reach direct detection systems. However, they work best for a certain channel …

Low-complexity multi-task learning aided neural networks for equalization in short-reach optical interconnects

Z Xu, S Dong, JH Manton, W Shieh - Journal of Lightwave …, 2022 - opg.optica.org
With the rapid development of machine learning technologies in recent years, different types
of neural network (NN)-based equalizers have been proposed and proved to be efficient …

Intelligent optical performance monitor using multi-task learning based artificial neural network

Z Wan, Z Yu, L Shu, Y Zhao, H Zhang, K Xu - Optics express, 2019 - opg.optica.org
An intelligent optical performance monitor using multi-task learning based artificial neural
network (MTL-ANN) is designed for simultaneous OSNR monitoring and modulation format …

Modified gerchberg-saxton algorithm based electrical dispersion pre-compensation for intensity-modulation and direct-detection systems

D Zou, F Li, W Wang, M Yin, Q Sui, Z Li - Journal of Lightwave …, 2022 - opg.optica.org
In intensity-modulation and direct-detection (IM-DD) communication systems, electrical
chromatic dispersion (CD) compensation cannot be directly applied in the transceivers due …

SOA pre-amplified 100 Gb/s/λ PAM-4 TDM-PON downstream transmission using 10 Gbps O-band transmitters

J Zhang, J Yu, JS Wey, X Li, L Zhao, K Wang… - Journal of Lightwave …, 2020 - opg.optica.org
We experimentally demonstrate the downstream transmission of a 100 Gb/s/λ time division
multiplexed passive optical network (TDM-PON) based on four-level pulsed amplitude …

Mitigation of SOA-induced nonlinearity with the aid of deep learning neural networks

K Wang, C Wang, J Zhang, Y Chen… - Journal of Lightwave …, 2022 - opg.optica.org
Semiconductor optical amplifier (SOA) is a promising solution for future O-band optical
amplification. However, the SOA-induced nonlinearity will affect the quality of the signals …

Simplified THP and M-Log-MAP Decoder Based Faster Than Nyquist Signaling for Intra-Datacenter Interconnect

D Zou, F Li, W Wang, W Ni, Q Sui, X Yi… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
In this article, a joint application of simplified Tomlinson-Harashima precoding (THP) and M-
log-maximum a posteriori probability (M-log-MAP) decoder at transceivers is proposed for …

Low cost O-band inter-datacenter interconnect utilizing a 4-bit resolution digital-to-analog converter for PAM-4 signal generation

M Yin, X Wang, D Zou, W Wang, Q Sui, F Li - Optics Express, 2021 - opg.optica.org
In this paper, we experimentally demonstrate the transmission of a 100 Gb/s/λ PAM-4 signal
over a 40/80-km single mode fiber (SMF) in the O-band utilizing a 4-bit resolution digital-to …

Suppressed noise enhancement equalization combined with nonlinear-MLSE techniques for bandwidth-limitation IM/DD System

W Wang, F Li, D Zou, W Ni, Q Sui, X Yi… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Bandwidth limitation introduced inter-symbol interference (ISI) is the major impediment for
high baud rate intensity modulation and direct detection (IM/DD) system with commercial …