Kernel mapping for mitigating nonlinear impairments in optical short-reach communications
Journal article, 2019

Nonlinear impairments induced by the opto-electronic components are one of the fundamental performance-limiting factors in high-speed optical short-reach communications, significantly hindering capacity improvement. This paper proposes to employ a kernel mapping function to map the signals in a Hilbert space to its inner product in a reproducing kernel Hilbert space, which has been successfully demonstrated to mitigate nonlinear impairments in optical short-reach communication systems. The operation principle is derived. An intensity modulation/direct detection system with 1.5-mu m vertical cavity surface emitting laser and 10-km 7-core fiber achieving 540.68-Gbps (net-rate 505.31-Gbps) has been carried out. The experimental results reveal that the kernel mapping based schemes are able to realize comparable transmission performance as the Volterra filtering scheme even with a high order. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Author

Lu Zhang

Zhejiang University

Xiaodan Pang

Infinera

Aleksejs Udalcovs

RISE Research Institutes of Sweden

Oskars Ozolins

RISE Research Institutes of Sweden

Rui Lin

Chalmers, Electrical Engineering, Communication and Antenna Systems, Optical Networks

Xin Yin

Ghent university

Ming Tang

HUST

Weijun Tong

Yangtze Opt Fibre & Cable Co Ltd YOFC

Shilin Xiao

SJTU

Jiajia Chen

Chalmers, Electrical Engineering, Communication and Antenna Systems, Optical Networks

Optics Express

1094-4087 (ISSN)

Vol. 27 21 29567-29580

Subject Categories

Telecommunications

Atom and Molecular Physics and Optics

Signal Processing

DOI

10.1364/OE.27.029567

PubMed

31684216

More information

Latest update

12/3/2019