Digital signal processing for short-reach optical communications: A review of current technologies and future trends

K Zhong, X Zhou, J Huo, C Yu, C Lu… - Journal of Lightwave …, 2018 - ieeexplore.ieee.org
Driven primarily by cloud service and data-center applications, short-reach optical
communication has become a key market segment and growing research area in recent …

Recent advances in equalization technologies for short-reach optical links based on PAM4 modulation: A review

H Zhou, Y Li, Y Liu, L Yue, C Gao, W Li, J Qiu, H Guo… - Applied Sciences, 2019 - mdpi.com
In recent years, short-reach optical links have attracted much more attention and have come
to constitute a key market segment due to the rapid development of data-center applications …

Advanced DSP enabled C-band 112 Gbit/s/λ PAM-4 transmissions with severe bandwidth-constraint

M Xiang, S Fu, O Xu, J Li, D Peng, Z Gao… - Journal of Lightwave …, 2022 - opg.optica.org
The performance of high-speed intensity modulation direct detection (IM-DD) transmissions
is severely degraded by the linear inter-symbol interference (ISI), due to both bandwidth …

Single wavelength 480 Gb/s direct detection over 80km SSMF enabled by Stokes vector Kramers Kronig transceiver

TM Hoang, MYS Sowailem, Q Zhuge, Z Xing… - Optics …, 2017 - opg.optica.org
We propose 4D modulation with direct detection employing a novel Stokes vector Kramers
Kronig transceiver. It shows that employing a Stokes vector receiver, transmitting a digital …

Single-carrier 800-Gb/s self-homodyne coherent transmission of DP-16QAM, DP-32QAM, and DP-64QAM with uncooled DFB laser

M Yang, G Yan, S Zheng, Z Wan, X Zhang, Y Zhu… - Optics …, 2023 - opg.optica.org
Self-homodyne detection (SHD) is a promising approach to realize high-capacity short-
reach optical transmission systems with low cost and low power consumption. We …

Achievable information rate optimization in C-band optical fiber communication system

Z Liu, T Xu, J Qi, J Uduagbomen, J Zhao… - Frontiers of Optoelectronics, 2023 - Springer
Optical fiber communication networks play an important role in the global telecommunication
network. However, nonlinear effects in the optical fiber and transceiver noise greatly limit the …

Modified DDFTN algorithm for band-limited short-reach optical interconnects

J Huo, S Liu, C Shang, X Zhang… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Inter symbol interference (ISI) degrades the performance of intensity modulation and direct
detection (IM/DD) transmission systems due to various transceiver and channel …

Joint FDE and MLSD algorithm for 56-Gbit/s optical FTN-PAM4 system using 10G-class optics

J Zhou, Y Qiao, X Huang, C Yu… - Journal of lightwave …, 2019 - ieeexplore.ieee.org
In this paper, we propose a joint frequency-domain equalizer (FDE) and maximum likelihood
sequence detection (MLSD) algorithm to eliminate the serious inter-symbol interference for …

[HTML][HTML] Advanced Neural Network-Based Equalization in Intensity-Modulated Direct-Detection Optical Systems: Current Status and Future Trends

Z Xu, T Ji, Q Wu, W Lu, H Ji, Y Yang, G Qiao, J Tang… - Photonics, 2024 - mdpi.com
Intensity-modulated direct-detection (IM/DD) optical systems are most widely employed in
short-reach optical interconnects due to their simple structure and cost-effectiveness …

C-band 200 Gbit/s/λ PAM-4 transmission over 2-km SSMF using look-up-table pre-distortion combined with nonlinear Tomlinson-Harashima pre-coding

Y Tu, H Yang, G Zhou, M Xiang, S Fu, M Tang, Y Qin… - Optics …, 2022 - opg.optica.org
The performance of high baud-rate intensity modulation direct detection (IM-DD)
transmissions is severely degraded by both the linear and nonlinear inter-symbol …