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
收藏
页码：694 / 697
页数：4
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