Yang, Jiaqian;
Sillekens, Eric;
Jarmolovičius, Mindaugas;
Puttnam, Benjamin J;
Sohanpal, Ronit;
Aparecido, Romulo;
Buglia, Henrique;
... Killey, Robert I; + view all
(2025)
Transmission Over Field-Deployed Standard
Single-Mode Fibre using >100 nm S+C+L-band.
Journal of Lightwave Technology
10.1109/jlt.2025.3546075.
(In press).
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Abstract
A record transmission throughput of 202.3 Tb/s (189.5 Tb/s after decoding) is reported over a 39 km field-deployed metropolitan standard single-mode fibre link using ultra-wideband geometrically-shaped signals, with lumped amplification and total launch power constrained to 20.9 dBm. An experimentally-optimised 5 dB tilt launch power pre-emphasis over the 15.6 THz optical bandwidth was applied to mitigate inter-channel stimulated Raman scattering. Compared to C+L-band transmission, extension to S+C+L-band, using 63.4 % more optical bandwidth, resulted in a 51.2 % increase in throughput under the same total launch power constraint. The trade-off between the addition of S-band channels, and the associated reduction in C+L-band SNR, was further explored for long-haul transmission, and it was shown that a similar percentage throughput increase (from 48.1 Tb/s to 73.1 Tb/s), but with 77.3 % higher bandwidth, could be achieved for 1014 km transmission over field-deployed fibre configured in a recirculating fibre loop. This work demonstrates the potential to enhance data throughput in deployed fibre systems by using S+C+L-bands.
| Type: | Article |
|---|---|
| Title: | Transmission Over Field-Deployed Standard Single-Mode Fibre using >100 nm S+C+L-band |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/jlt.2025.3546075 |
| Publisher version: | https://doi.org/10.1109/jlt.2025.3546075 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | ultra-wide band transmission, inter-channel stimulated Raman scattering, deployed fibre |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS 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/10205939 |
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