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Long-haul optical transmission link using low-noise phase-sensitive amplifiers

The capacity and reach of long-haul fiber optical communication systems is limited by in-line amplifier noise and fiber nonlinearities. Phase-sensitive amplifiers add 6 dB less noise than conventional phase-insensitive amplifiers, such as erbium-doped fiber amplifiers, and they can provide nonlinear...

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Autores principales: Olsson, Samuel L.I., Eliasson, Henrik, Astra, Egon, Karlsson, Magnus, Andrekson, Peter A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6023869/
https://www.ncbi.nlm.nih.gov/pubmed/29955056
http://dx.doi.org/10.1038/s41467-018-04956-5
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author Olsson, Samuel L.I.
Eliasson, Henrik
Astra, Egon
Karlsson, Magnus
Andrekson, Peter A.
author_facet Olsson, Samuel L.I.
Eliasson, Henrik
Astra, Egon
Karlsson, Magnus
Andrekson, Peter A.
author_sort Olsson, Samuel L.I.
collection PubMed
description The capacity and reach of long-haul fiber optical communication systems is limited by in-line amplifier noise and fiber nonlinearities. Phase-sensitive amplifiers add 6 dB less noise than conventional phase-insensitive amplifiers, such as erbium-doped fiber amplifiers, and they can provide nonlinearity mitigation after each span. Realizing a long-haul transmission link with in-line phase-sensitive amplifiers providing simultaneous low-noise amplification and nonlinearity mitigation is challenging and to date no such transmission link has been demonstrated. Here, we demonstrate a multi-channel-compatible and modulation-format-independent long-haul transmission link with in-line phase-sensitive amplifiers. Compared to a link amplified by conventional erbium-doped fiber amplifiers, we demonstrate a reach improvement of 5.6 times at optimal launch powers with the phase-sensitively amplified link operating at a total accumulated nonlinear phase shift of 6.2 rad. The phase-sensitively amplified link transmits two data-carrying waves, thus occupying twice the bandwidth and propagating twice the total power compared to the phase-insensitively amplified link.
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spelling pubmed-60238692018-07-02 Long-haul optical transmission link using low-noise phase-sensitive amplifiers Olsson, Samuel L.I. Eliasson, Henrik Astra, Egon Karlsson, Magnus Andrekson, Peter A. Nat Commun Article The capacity and reach of long-haul fiber optical communication systems is limited by in-line amplifier noise and fiber nonlinearities. Phase-sensitive amplifiers add 6 dB less noise than conventional phase-insensitive amplifiers, such as erbium-doped fiber amplifiers, and they can provide nonlinearity mitigation after each span. Realizing a long-haul transmission link with in-line phase-sensitive amplifiers providing simultaneous low-noise amplification and nonlinearity mitigation is challenging and to date no such transmission link has been demonstrated. Here, we demonstrate a multi-channel-compatible and modulation-format-independent long-haul transmission link with in-line phase-sensitive amplifiers. Compared to a link amplified by conventional erbium-doped fiber amplifiers, we demonstrate a reach improvement of 5.6 times at optimal launch powers with the phase-sensitively amplified link operating at a total accumulated nonlinear phase shift of 6.2 rad. The phase-sensitively amplified link transmits two data-carrying waves, thus occupying twice the bandwidth and propagating twice the total power compared to the phase-insensitively amplified link. Nature Publishing Group UK 2018-06-28 /pmc/articles/PMC6023869/ /pubmed/29955056 http://dx.doi.org/10.1038/s41467-018-04956-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Olsson, Samuel L.I.
Eliasson, Henrik
Astra, Egon
Karlsson, Magnus
Andrekson, Peter A.
Long-haul optical transmission link using low-noise phase-sensitive amplifiers
title Long-haul optical transmission link using low-noise phase-sensitive amplifiers
title_full Long-haul optical transmission link using low-noise phase-sensitive amplifiers
title_fullStr Long-haul optical transmission link using low-noise phase-sensitive amplifiers
title_full_unstemmed Long-haul optical transmission link using low-noise phase-sensitive amplifiers
title_short Long-haul optical transmission link using low-noise phase-sensitive amplifiers
title_sort long-haul optical transmission link using low-noise phase-sensitive amplifiers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6023869/
https://www.ncbi.nlm.nih.gov/pubmed/29955056
http://dx.doi.org/10.1038/s41467-018-04956-5
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