Raman amplification optimization in short-reach high data rate coherent transmission systems


We compared the transmission performances of 600 Gbit/s PM-64QAM WDM signals over 75.6 km of single-mode fibre (SMF) using EDFA, discrete Raman, hybrid Raman/EDFA, and firstorder or second-order (dual-order) distributed Raman amplifiers. Our numerical simulations and experimental results showed that the simple first-order distributed Raman scheme with backward pumping delivered the best transmission performance among all the schemes, notably better than the expected second-order Raman scheme, which gave a flatter signal power variation along the fibre. Using the first-order backward Raman pumping scheme demonstrated a better balance between the ASE noise and fibre nonlinearity and gave an optimal transmission performance over a relatively short distance of 75 km SMF.

Publication DOI: https://doi.org/10.3390/s21196521
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). Funding: UK Engineering and Physical Sciences Research Council (EPSRC) Grant EP/S003436/1 (PHOS), EP/V000969/1 (ARGON), Polish Ministry of Science and Higher Education Grant 12300060, and National Natural Science Foundation of China Grant 61975027
Uncontrolled Keywords: Optical fibre communication,Raman amplification,Analytical Chemistry,Information Systems,Atomic and Molecular Physics, and Optics,Biochemistry,Instrumentation,Electrical and Electronic Engineering
Publication ISSN: 1424-8220
Last Modified: 07 May 2024 07:35
Date Deposited: 04 Oct 2021 07:53
Full Text Link:
Related URLs: https://researc ... /id/eprint/522/ (Related URL)
https://www.mdp ... 8220/21/19/6521 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2021-09-29
Accepted Date: 2021-09-23
Authors: Tan, Mingming (ORCID Profile 0000-0002-0822-8160)
Iqbal, Md Asif
Nguyen, Tu T.
Rosa, Paweł
Krzczanowicz, Lukasz
Phillips, Ian (ORCID Profile 0000-0002-2776-8939)
Harper, Paul (ORCID Profile 0000-0002-9495-9911)
Forysiak, Wladek (ORCID Profile 0000-0001-5411-1193)



Version: Published Version

License: Creative Commons Attribution

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