Fiber nonlinearity-induced penalty reduction in CO-OFDM by ANN-based nonlinear equalization

被引：73

作者：

Giacoumidis, Elias ^{[1
]}

Le, Son T. ^{[2
]}

Ghanbarisabagh, Mohammad ^{[3
]}

McCarthy, Mary ^{[2
]}

Aldaya, Ivan ^{[4
]}

Mhatli, Sofien ^{[5
]}

Jarajreh, Mutsam A. ^{[6
]}

Haigh, Paul A. ^{[7
]}

Doran, Nick J. ^{[2
]}

Ellis, Andrew D. ^{[2
]}

Eggleton, Benjamin J. ^{[1
]}

机构：

[1] Univ Sydney, IPOS, Sch Phys, ARC Ctr Excellence Ultrahigh Bandwidth Devices Op, Sydney, NSW 2006, Australia

[2] Aston Univ, AIPT, Birmingham B4 7ET, W Midlands, England

[3] Islamic Azad Univ, Fac Engn, North Tehran Branch, Tehran, Iran

[4] Inst Tecnol & Estudios Super Monterrey, Dept Elect & Computat Engn, Monterrey 64800, Mexico

[5] EPT Univ Carthage, SERCOM Lab, Tunis 2078, Tunisia

[6] Fahad Bin Sultan Univ, Sch Comp, Dept Engn, Tabuk, Saudi Arabia

[7] Univ Bristol, Fac Engn, HPN Grp, Bristol BS8 1UB, Avon, England

来源：

OPTICS LETTERS | 2015年 / 40卷 / 21期

基金：

英国工程与自然科学研究理事会;

关键词：

TRANSMISSION; LIMIT;

D O I：

10.1364/OL.40.005113

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate similar to 2 dB quality (Q)-factor enhancement in terms of fiber nonlinearity compensation of 40 Gb/s 16 quadrature amplitude modulation coherent optical orthogonal frequency-division multiplexing at 2000 km, using a nonlinear equalizer (NLE) based on artificial neural networks (ANN). Nonlinearity alleviation depends on escalation of the ANN training overhead and the signal bit rate, reporting similar to 4 dB Q-factor enhancement at 70 Gb/s, whereas a reduction of the number of ANN neurons annihilates the NLE performance. An enhanced performance by up to similar to 2 dB in Q-factor compared to the inverse Volterra-series transfer function NLE leads to a breakthrough in the efficiency of ANN. (C) 2015 Optical Society of America

引用

页码：5113 / 5116

页数：4

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