Abstract

We propose a simple two-step amplifier configuration algorithm based on signal power across different channels to improve the generalized signal-to-noise ratio (GSNR) performance of dynamic C + L-band links in the presence of amplifier spontaneous emission (ASE) noise, Kerr nonlinearity, and stimulated Raman scattering (SRS) using erbium-doped fiber amplifiers (EDFA). In step 1, ASE noise and Kerr nonlinearity are taken into account to derive sub-optimal signal power profiles at the beginning of each span using the local optimization global optimization (LOGO) strategy. The effect of SRS is compensated through amplifier gain pre-tilt in step 2. Simulations for links with homogeneous/heterogeneous spans, static full-channel loading, and dynamic loading due to gradual channel additions for C + L-band upgrades show that the proposed algorithm can achieve similar GSNR performance, but requires much less execution time, compared to other iterative methods that target for improving the GSNR across the C + L band, thus making it a fast and efficient GSNR management strategy for future dynamic C + L-band networks.

© 2022 Optica Publishing Group

Performance improvements by dynamic amplifier reconfigurations for C + L-band optical networks in the presence of stimulated Raman scattering

Zhuili Huang, Liang Dou, Jingchi Cheng, Chongjin Xie, Chao Lu, and Alan Pak Tao Lau
J. Opt. Commun. Netw. 15(6) 344-356 (2023)

Ultra-wideband discrete Raman amplifier optimization for single-span S-C-L-band coherent transmission systems

Pratim Hazarika, Mingming Tan, Aleksandr Donodin, Mohammad Patel, Ian Phillips, Paul Harper, and Wladek Forysiak
Opt. Lett. 47(24) 6472-6475 (2022)

Optimization strategy of power control for C+L+S band transmission using a simulated annealing algorithm

Huaijian Luo, Jianing Lu, Zhuili Huang, Changyuan Yu, and Chao Lu
Opt. Express 30(1) 664-675 (2022)

Extended L-band few-mode Er/Yb Co-doped fiber amplifier with a cladding-pumped pseudo-two-stage configuration

Qiang Qiu, Le He, Zhimu Gu, Yang Chen, Yang Lou, Xinyue Zhao, Jinggang Peng, Haiqing Li, Yingbin Xing, Yingbo Chu, Nengli Dai, and Jinyan Li
Opt. Lett. 47(12) 2963-2966 (2022)

Network upgrade exploiting multi band: S- or E-band?

Nicola Sambo, Bruno Correia, Antonio Napoli, João Pedro, Leily Kiani, Piero Castoldi, and Vittorio Curri
J. Opt. Commun. Netw. 14(9) 749-756 (2022)