On nonlinearly-induced noise in single-channel optical links with digital backpropagation

被引：14

作者：

Beygi, Lotfollah ^{[1
]}

Irukulapati, Naga V. ^{[1
]}

Agrell, Erik ^{[1
]}

Johannisson, Pontus ^{[2
]}

Karlsson, Magnus ^{[2
]}

Wymeersch, Henk ^{[1
]}

Serena, Paolo ^{[3
]}

Bononi, Alberto ^{[3
]}

机构：

[1] Chalmers Univ Technol, Dept Signals & Syst, S-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, Dept Microtechnol & Nanosci, S-41296 Gothenburg, Sweden

[3] Univ Parma, Dipartimento Ingn Informaz, I-43100 Parma, Italy

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 22期

关键词：

ENHANCED PHASE NOISE; DISCRETE-TIME MODEL; COHERENT TRANSMISSIONS; PROPAGATION; IMPAIRMENTS; STATISTICS; CAPACITY;

D O I：

10.1364/OE.21.026376

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we investigate the performance limits of electronic chromatic dispersion compensation (EDC) and digital backpropagation (DBP) for a single-channel non-dispersion-managed fiber-optical link. A known analytical method to derive the performance of the system with EDC is extended to derive a first-order approximation for the performance of the system with DBP. In contrast to the cubic growth of the variance of the nonlinear noise-like interference, often called nonlinear noise, with input power for EDC, a quadratic growth is observed with DBP using this approximation. Finally, we provide numerical results to verify the accuracy of the proposed approach and compare it with existing analytical models. (C) 2013 Optical Society of America

引用

页码：26376 / 26386

页数：11

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