Optimization of Long-Haul C+L+S Systems by Means of a Closed Form EGN Model
Yanchao Jiang, Jad Sarkis, Antonino Nespola, F. Forghieri, Stefano Piciaccia, A. Tanzi, Mahdi Ranjbar Zefreh, Pierluigi T. Poggiolini · IEEE Photonics Technology Letters · 2024
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.