Detailed discussion of the optimum baud rate of nonlinearity in WDM transmission

被引：1

作者：

Wang, Wanli ^{[1
]}

Qiao, Yaojun ^{[1
]}

Yang, Lin ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2017年 / 382卷

基金：

中国国家自然科学基金;

关键词：

Optical communications; Optimum baud rate; WDM transmission; Nonlinearity; STATISTICAL CHARACTERIZATION; 4-WAVE-MIXING NOISE; OFDM SYSTEMS; DWDM SYSTEM; GN MODEL; FIBER; EFFICIENCY;

D O I：

10.1016/j.optcom.2016.08.046

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Different numbers of sub-channels correspond to different baud rates per sub-channel when the total baud rate is fixed. The optimum baud rate of nonlinearity in WDM systems is investigated in this paper. We find that the phase matching effect produces an optimum baud rate of nonlinearity, which is related to the chromatic dispersion accumulation of a single span. Then other factors that influence the optimum baud rate are analyzed. By mathematical derivation and simulation verification, larger number of spans and larger spectrum gap between sub-channels both make the optimum value decrease. We also find that different modulation formats barely change the optimum baud rate if other system settings are the same and all sub-channels have the same modulation format. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：565 / 573

页数：9

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