Comparison of S-band doped fiber amplifier and Raman amplifiers in long-haul coherent transmission

Abstract

We compare the long-haul coherent transmission performance of 30 GBaud DP-16-QAM WDM signals using five different S-band optical amplifiers: a thulium doped fiber amplifier (TDFA), a distributed Raman amplifier (DRA) and three different lumped Raman amplifiers (LRAs) using 10 km inverse dispersion fiber (IDF), 10 km, and 5 km Raman optical fibers (ROFs). Over 1050 km standard single-mode fiber (SSMF), the DRA performed the best with an SNR of 14.2 dB at the optimum launch power of -2.3 dBm, followed by the TDFA with an SNR of 13.0 dB and the LRA using 10 km IDF with 11.6 dB of SNR.

Publication DOI: https://doi.org/10.1109/LPT.2025.3638626
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies > Electronics & Computer Engineering
College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Aston University (General)
Funding Information: This work was supported by UK EPSRC grants ARGON (EP/V000969/1), TRANSNET (EP/R035342/1) Royal Society grants (IES/IE/223001) and the department of Science and Innovation and Technology and the Royal Academy of Engineering under Research Fellowship. The a
Additional Information: For the purpose of open access, the author(s) has applied a Creative Commons Attribution (CC BY) license to any Accepted Manuscript version arising.
Uncontrolled Keywords: Optical fiber amplifiers,Gain,Optical fiber dispersion,Optical fibers,Stimulated emission,Signal to noise ratio,Noise figure,Wavelength division multiplexing,Optical fiber couplers,Optical losses
Publication ISSN: 1941-0174
Last Modified: 12 Dec 2025 08:11
Date Deposited: 08 Dec 2025 13:52
Full Text Link:
Related URLs: https://ieeexpl ... ument/11271223/ (Publisher URL)
PURE Output Type: Article
Published Date: 2025-11-28
Published Online Date: 2025-11-28
Accepted Date: 2025-11-01
Authors: Pratiwi, Dini
Donodin, Aleksandr (ORCID Profile 0000-0002-5715-1438)
Phillips, Ian (ORCID Profile 0000-0002-2776-8939)
Forysiak, Wladek (ORCID Profile 0000-0001-5411-1193)
Tan, Mingming (ORCID Profile 0000-0002-0822-8160)

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Version: Accepted Version

License: Creative Commons Attribution


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