A Generalized Raman Scattering Model for Real-Time SNR Estimation of Multi-Band Systems

被引：8

作者：

Lasagni, Chiara ^{[1
,2
]}

Serena, Paolo ^{[3
,4
]}

Bononi, Alberto ^{[3
,4
]}

Antona, Jean-Christophe ^{[5
]}

机构：

[1] Univ Aquila, Dept Phys & Chem Sci, I-67100 Laquila, Italy

[2] CNIT Natl Lab Adv Opt Fibers Photon FIBERS, Laquila, Italy

[3] Univ Parma, Dept Engn & Architecture, I-43124 Parma, Italy

[4] CNIT Natl Lab Adv Opt Fibers Photon FIBERS, I-67100 Laquila, Italy

[5] Alcatel Submarine Networks, F-91620 Nozay, France

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2023年 / 41卷 / 11期

关键词：

Stimulated Raman scattering (SRS); Gaussian noise (GN) model; multi-band; ultra-wide band; NONLINEAR INTERFERENCE; NOISE; APPROXIMATION; AMPLIFIERS;

D O I：

10.1109/JLT.2023.3250751

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate the impact of stimulated Raman scattering (SRS) in multi-band transmissions. We first derive and test against numerical results an extended Christodoulides-Zirngibl (ECZ) SRS model based on a triangular approximation of the Raman gain. Then, we exploit the ECZ SRS model in the context of the Gaussian noise (GN) model. We generalize some known closed-form expressions of the self- and cross-phase modulation variances, as well as the amplified spontaneous emission noise variance, over multi-band systems of bandwidth wider than the SRS bandwidth, i.e., beyond the C+L band. Finally, the proposed theoretical model is used to estimate the performance of multi-band systems in terms of signal-to-noise ratio (SNR) and achievable information rate (AIR).

引用

页码：3407 / 3416

页数：10

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