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Achievable information rates estimates in optically amplified transmission systems using nonlinearity compensation and probabilistic shaping

Semrau, D; Xu, T; Shevchenko, NA; Paskov, M; Alvarado, A; Killey, RI; Bayvel, P; (2017) Achievable information rates estimates in optically amplified transmission systems using nonlinearity compensation and probabilistic shaping. Optics Letters , 42 (1) pp. 121-124. 10.1364/OL.42.000121. Green open access

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Abstract

Achievable information rates (AIRs) of wideband optical communication systems using a ∼40 nm (∼5 THz) erbium-doped fiber amplifier and ∼100 nm (∼12.5 THz) distributed Raman amplification are estimated based on a first-order perturbation analysis. The AIRs of each individual channel have been evaluated for DP-64QAM, DP-256QAM, and DP-1024QAM modulation formats. The impact of fullfield nonlinear compensation (FF-NLC) and probabilistically shaped constellations using a Maxwell-Boltzmann distribution were studied and compared to electronic dispersion compensation. It has been found that a probabilistically shaped DP-1024QAM constellation, combined with FF-NLC, yields achievable information rates of ∼75 Tbit?s for the EDFA scheme and ∼223 Tbit?s for the Raman amplification scheme over a 2000 km standard single-mode fiber transmission.

Type: Article
Title: Achievable information rates estimates in optically amplified transmission systems using nonlinearity compensation and probabilistic shaping
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/OL.42.000121
Publisher version: http://doi.org/10.1364/OL.42.000121
Language: English
Additional information: © 2017 Optical Society of America. 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.
UCL classification: 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/1538534
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