Coherent all-optical reservoir computing for nonlinear equalization in long-haul optical fiber communication systems

被引：0

作者：

Peng, Guanju ^{[1
]}

Liu, Yaping ^{[1
]}

Li, Zheng ^{[1
]}

Zhu, Kunpeng ^{[1
]}

Yang, Zhiqun ^{[1
]}

Li, Jianping ^{[2
]}

Zhang, Shigui ^{[2
]}

Huang, Zhanhua ^{[1
]}

Zhang, Lin ^{[1
,3
]}

机构：

[1] Tianjin Univ, Sch Precis Instruments & Optoelect Engn, State Key Lab Precis Measurement Technol & Instrum, Key Lab Optoelect Informat Technol,Minist Educ,Tia, Tianjin 300072, Peoples R China

[2] HMN Technol Co Ltd, Tianjin 300467, Peoples R China

[3] Peng Cheng Lab, Shenzhen 518038, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2024年 / 174卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Photonic reservoir computing; Optical fiber communication; Long-haul transmission; Nonlinear equalization; Nonlinearity mitigation; PREDICTION PERFORMANCE; SEMICONDUCTOR-LASERS; FEEDBACK; TRANSMISSION; FEEDFORWARD; DISPERSION; SUBJECT;

D O I：

10.1016/j.optlastec.2024.110697

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Photonic reservoir computing (RC), as a promising paradigm of optical signal processing, has attracted a great deal of attention in fiber nonlinearity equalization recently. For real long-haul transmission scenarios, we propose an all-optical RC operated in a coherent scheme to mitigate the nonlinear distortion of high-speed signals. Compared with the direct decision architecture, the proposed RC can dramatically improve the Q2 factor by 2.6 dB for a single-wavelength system and 1.9 dB for a 7-channel wavelength-division multiplexing (WDM) system over 3960-km fiber transmission. Furthermore, the robustness of the coherent all-optical RC is also verified by conducting studies on different training sequences. The coherent all-optical RC shows great potential in real-time nonlinearity mitigation for long-haul fiber transmissions.

引用

页数：9

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