Generalized Rayleigh quotient optimization method for inter-channel nonlinearity compensation in coherent optical communication systems

被引：1

作者：

Lan, Tianxiang ^{[1
]}

Yang, Chuanchuan ^{[1
,2
]}

Fang, Xiansong ^{[1
]}

Zhang, Fan ^{[1
]}

Yu, Wenjing ^{[3
]}

Zhou, Weiqin ^{[3
]}

Chen, Zhangyuan ^{[1
]}

机构：

[1] Peking Univ, Sch Elect, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China

[2] Peking Univ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China

[3] ZTE Plaza,Keji Rd South,Hitech Ind Pk, Shenzhen 518000, Peoples R China

来源：

OPTICS LETTERS | 2024年 / 49卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Compendex;

D O I：

10.1364/OL.513589

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Inter -channel nonlinearity compensation plays a crucial role in wavelength division multiplexing (WDM) systems for improving transmission capacity and distance. In this work, we propose a novel, to the best of our knowledge, inter -channel nonlinearity compensation method called generalized Rayleigh quotient optimization (GRQO) method with two different working modes. In an 8 x 64 GBaud 16-ary quadrature amplitude modulation (16-QAM) experimental system over 1600 km standard single -mode fiber (SSMF), the proposed method shows a 0.40 dB Q( )(2)factor improvement over nonlinear polarization cross talk canceller (NPCC) with a moderately low computational complexity of about 2000 real multiplications per bit (RMb). (c) 2024 Optica Publishing Group

引用

页码：694 / 697

页数：4

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