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Kernel mapping for mitigating nonlinear impairments in optical short-reach communications
Zhejiang University, China.
Infinera, Sweden.
RISE - Research Institutes of Sweden, ICT, Acreo.ORCID iD: 0000-0003-3754-0265
RISE - Research Institutes of Sweden, ICT, Acreo.ORCID iD: 0000-0001-9839-7488
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2019 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 27, no 21, p. 29567-29580Article in journal (Refereed) Published
Abstract [en]

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-┬Ám 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.

Place, publisher, year, edition, pages
OSA - The Optical Society , 2019. Vol. 27, no 21, p. 29567-29580
Keywords [en]
Hilbert spaces, Mapping, Optical communication, Surface emitting lasers, Vector spaces, Capacity improvement, Intensity modulation/direct detection systems, Kernel mapping, Nonlinear impairments, Performance limiting factor, Reproducing Kernel Hilbert spaces, Transmission performance, Volterra filtering, Nonlinear optics
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40603DOI: 10.1364/OE.27.029567Scopus ID: 2-s2.0-85073607265OAI: oai:DiVA.org:ri-40603DiVA, id: diva2:1369610
Available from: 2019-11-12 Created: 2019-11-12 Last updated: 2020-01-22Bibliographically approved

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Udalcovs, AleksejsOzolins, Oskars

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