Span length and information rate optimisation in optical transmission systems using single-channel digital backpropagation

被引：7

作者：

Karanov, Boris ^{[1
]}

Xu, Tianhua ^{[2
]}

Shevchenko, Nikita A. ^{[1
]}

Lavery, Domanic ^{[1
]}

Killey, Robert I. ^{[1
]}

Bayvel, Polina ^{[1
]}

机构：

[1] UCL, Dept Elect & Elect Engn, Opt Networks Grp, London WC1E 7JE, England

[2] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 21期

基金：

英国工程与自然科学研究理事会; 欧盟地平线“2020”;

关键词：

FIBER NONLINEARITY COMPENSATION; COMMUNICATION-SYSTEMS; BACKWARD PROPAGATION; DISPERSION; NOISE; AMPLIFICATION; MODULATION; LINKS; AMPLIFIER; CAPACITY;

D O I：

10.1364/OE.25.025353

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optimisation of span length when designing optical communication systems is important from both performance and cost perspectives. In this paper, the optimisation of inter-amplifier spacing and the potential increase of span length at fixed information rates in optical communication systems with practically feasible nonlinearity compensation schemes have been investigated. It is found that in DP-16QAM, DP-64QAM and DP-256QAM systems with practical transceiver noise limitations, single-channel digital backpropagation can allow a 50% reduction in the number of amplifiers without sacrificing information rates compared to systems with optimal span lengths and linear compensation.

引用

页码：25353 / 25362

页数：10

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