Deep learning-assisted nonlinearity compensation in subcarrier-multiplexing coherent optical systems

WS Saif, SKO Soman, OA Dobre - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Fiber nonlinearity imposes limitations on the transmission distances in optical fiber networks.
Fiber nonlinearity compensation (NLC) becomes essential for extending the transmission …

Blind adaptive digital backpropagation for fiber nonlinearity compensation

F Zhang, Q Zhuge, M Qiu, X Zhou… - Journal of Lightwave …, 2018 - opg.optica.org
Fully blind adaptive digital backpropagation (DBP) based on a steepest descent algorithm is
proposed. For homogeneous links, a two-parameter blind adaptive (TBA) scheme is …

Frequency-domain hybrid modulation formats for high bit-rate flexibility and nonlinear robustness

FP Guiomar, L Bertignono, A Nespola… - Journal of Lightwave …, 2018 - opg.optica.org
Since the deployment of the first commercial polarization-multiplexed (PM) QPSK 100G
systems, the evolution of coherent optical communications in the last decade has been …

Digital backpropagation for subcarrier-multiplexing systems with nonlinearity compensation fusion

D Tang, Z Wu, Y Jiang, J Luo, J Luo… - IEEE Photonics …, 2022 - ieeexplore.ieee.org
A novel simplified implementation structure is proposed for digital backpropagation in digital
subcarrier-multiplexing systems (SCM-DBP) and one of its modifications, the SCM-DBP with …

Multi-subcarrier flexible bit-loading enabled capacity improvement in meshed optical networks with cascaded ROADMs

M Xiang, Q Zhuge, M Qiu, F Zhang, X Zhou, M Tang… - Optics …, 2017 - opg.optica.org
We propose to use adaptive bit loading based on time-domain hybrid QAM (TDHQ) to
maximize the capacity of subcarrier-multiplexing (SCM) systems in meshed optical networks …

Fiber nonlinearity mitigation and compensation for capacity-approaching optical transmission systems

Q Zhuge, M Fu, H Lun, X Liu… - 2019 Asia Communications …, 2019 - ieeexplore.ieee.org
Fiber Nonlinearity Mitigation and Compensation for Capacity-Approaching Optical
Transmission Systems Page 1 Fiber Nonlinearity Mitigation and Compensation for Capacity-Approaching …

Single-step digital backpropagation for subcarrier-multiplexing transmissions

H Lun, Q Zhuge, Z Xiao, S Fu, M Tang, D Liu, W Hu… - Optics …, 2019 - opg.optica.org
We propose and demonstrate a single-step digital back propagation (DBP) algorithm for
metro and regional transmissions with high order modulation formats. Based on subcarrier …

Low complexity split digital backpropagation for digital subcarrier-multiplexing optical transmissions

Z Xiao, Q Zhuge, S Fu, F Zhang, M Qiu, M Tang… - Optics …, 2017 - opg.optica.org
A split digital backpropagation (DBP) scheme for digital subcarrier-multiplexing (SCM)
transmissions, denoted as SSDBP, is proposed and studied in both experiments and …

Perturbation-Aided Fiber Nonlinearity Compensation in Subcarrier-Multiplexing Systems

D Tang, Z Wu, S Liu, J Luo, J Luo… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
A perturbation-aided advanced digital backpropagation (P-ADBP) is proposed for subcarrier-
multiplexing (SCM) coherent systems. To improve the nonlinearity compensation (NLC) …

A Machine Learning-Based Approach for Nonlinearity Compensation in Subcarrier Multiplexing System

WS Saif, SKO Soman, OA Dobre - 2023 23rd International …, 2023 - ieeexplore.ieee.org
In this paper, we investigate the potential of applying machine learning (ML) technique for
nonlinearity compensation in subcarrier multiplexing (SCM) systems. We propose an …