Gong, M;
Ran, M;
Xiao, X;
Hu, X;
Li, Y;
Luo, M;
Huang, T;
... Gan, Z; + view all
(2025)
Segmented Power Optimization for Achieving 800 Gbps per-Channel Transmission in C+L+S Band Fiber Systems.
In:
2025 13th International Conference on Intelligent Computing and Wireless Optical Communications Icwoc 2025.
(pp. pp. 211-215).
IEEE: Chengdu, China.
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Abstract
Ultra-wideband optical transmission systems operating over the C+L+S bands are critical for meeting the growing demand for high-capacity networks. However, existing power optimization strategies-typically based on coarse control using one slope and one offset per band-struggle to achieve sufficiently flat SNR profiles, especially in the L-band. To address this limitation, we propose a segmented power allocation approach that models the L-band power distribution as multiple linear segments, each controlled by offset and slope parameters. Using particle swarm optimization (PSO) under the ISRS GN model, we evaluate various segmentation strategies in a 181-channel, 20 THz WDM system targeting 800 Gbps per-channel transmission. Experimental results demonstrate that segmenting the L-band into three or four regions significantly reduces SNR ripple to below 0.2 dB, improves minimum achievable data rate to over 797 Gbps, and maintains acceptable optimization time, offering a superior trade-off between performance and complexity.
| Type: | Proceedings paper |
|---|---|
| Title: | Segmented Power Optimization for Achieving 800 Gbps per-Channel Transmission in C+L+S Band Fiber Systems |
| Event: | 2025 13th International Conference on Intelligent Computing and Wireless Optical Communications (ICWOC) |
| Location: | PEOPLES R CHINA, Chengdu |
| Dates: | 27 Jun 2025 - 29 Jun 2025 |
| ISBN-13: | 979-8-3315-4481-2 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ICWOC65853.2025.11151135 |
| Publisher version: | https://doi.org/10.1109/icwoc65853.2025.11151135 |
| 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: | C plus L plus S-band transmission, launch power optimization, 800Gbps, GSNR flatness, optical network, NOISE |
| 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/10218972 |
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