Kernel Affine Projection for Nonlinearity Tolerant Optical Short Reach Systems
Journal article, 2020
Nonlinearity is one of the key issues that hinder the development of high-capacity optical short reach systems. This paper proposes three variants of kernel affine projection (KAP) algorithms, all of which combine kernel mapping and affine projection in a reproducing kernel Hilbert space for compensating nonlinear impairments in optical short reach systems. An intensity modulation/direct detection system with a single digital-to-analogue converter, a packaged externally modulated laser and a packaged InP photo-detector is used for experimental demonstration, achieving 238-Gbps (net rate 222-Gbps). Experimental results show that the KAP algorithms can mitigate nonlinear impairments in short-reach communications while maintaining low complexity in reproducing kernel Hilbert space.
Equalizers
optical fiber communication
communication system nonlinearities
Author
Lu Zhang
Zhejiang University
Zhejiang Lab
Jiajia Chen
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Aleksejs Udalcovs
RISE Research Institutes of Sweden
Xiaodan Pang
Royal Institute of Technology (KTH)
Infinera
Richard Schatz
Royal Institute of Technology (KTH)
Urban Westergren
Royal Institute of Technology (KTH)
Sergei Popov
Royal Institute of Technology (KTH)
Shilin Xiao
Shanghai Jiao Tong University
Oskars Ozolins
Royal Institute of Technology (KTH)
RISE Research Institutes of Sweden
IEEE Transactions on Communications
0090-6778 (ISSN) 15580857 (eISSN)
Vol. 68 10 6403-6412 9134945Subject Categories
Control Engineering
Signal Processing
Computer Science
DOI
10.1109/TCOMM.2020.3007643