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Digital back-propagation for nonlinearity mitigation in distributed Raman amplified links

Saavedra, G; Semrau, D; Galdino, L; Killey, RI; Bayvel, P; (2017) Digital back-propagation for nonlinearity mitigation in distributed Raman amplified links. Optics Express , 25 (5) pp. 5431-5439. 10.1364/OE.25.005431. Green open access

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Abstract

The performance of digital back-propagation (DBP) for distributed Raman amplified optical communication systems is evaluated through analytical models and numerical simulations, and is compared with conventional lumped amplifier solutions, such as EDFA. The complexity of the DBP algorithm including the characteristic signal power profile of distributed Raman amplifiers is assessed. The use of full-field DBP in distributed Raman amplified systems leads to 1.3 dB additional gain with respect to systems employing lumped amplification, at the cost of only a 25% increase in complexity.

Type: Article
Title: Digital back-propagation for nonlinearity mitigation in distributed Raman amplified links
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/OE.25.005431
Publisher version: http://dx.doi.org/10.1364/OE.25.005431
Language: English
Additional information: Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Keywords: Science & Technology, Physical Sciences, Optics, TRANSMISSION, AMPLIFICATION, PROPAGATION, PERFORMANCE, SYSTEMS, MODEL
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1558241
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