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Achievable rate degradation of ultra-wideband coherent fiber communication systems due to stimulated Raman scattering

Semrau, D; Killey, R; Bayvel, P; (2017) Achievable rate degradation of ultra-wideband coherent fiber communication systems due to stimulated Raman scattering. Optics Express , 25 (12) pp. 13024-13034. 10.1364/OE.25.013024. Green open access

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Abstract

As the bandwidths of optical communication systems are increased to maximize channel capacity, the impact of stimulated Raman scattering (SRS) on the achievable information rates (AIR) in ultra-wideband coherent WDM systems becomes significant, and is investigated in this work, for the first time. By modifying the GN-model to account for SRS, it is possible to derive a closed-form expression that predicts the optical signal-to-noise ratio of all channels at the receiver for bandwidths of up to 15 THz, which is in excellent agreement with numerical calculations. It is shown that, with fixed modulation and coding rate, SRS leads to a drop of approximately 40% in achievable information rates for bandwidths higher than 15 THz. However, if adaptive modulation and coding rates are applied across the entire spectrum, this AIR reduction can be limited to only 10%.

Type: Article
Title: Achievable rate degradation of ultra-wideband coherent fiber communication systems due to stimulated Raman scattering
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/OE.25.013024
Publisher version: https://doi.org/10.1364/OE.25.013024
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
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/1576022
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