Optimization of Long-Haul C+L+S Systems by Means of a Closed Form EGN Model

/ Authors

Y. Jiang, J. Sarkis, A. Nespola, F. I. F. Forghieri, S. Piciaccia, A. Tanzi, M. Zefreh, F. I. P. Poggiolini

/ Abstract

We investigate C+L+S long-haul systems using a closed-form GN/EGN non-linearity model. We perform accurate launch power and Raman pump optimization. We show a potential 4x throughput increase over legacy C-band systems in 1000 km links, using moderate S-only Raman amplification. We simultaneously achieve extra-flat GSNR, within ±0.5 dB across the whole C+L+S spectrum.

Journal: IEEE Photonics Technology Letters

DOI: 10.1109/LPT.2024.3445727