Joint modulation format identification and OSNR monitoring based on Stokes vector distribution features for digital coherent optical receivers  

作　　者：蒲正宇 蒋林 闫连山 易安林 何海军 潘炜 罗斌 Zhengyu Pu;Lin Jiang;Lianshan Yan;Anlin Yi;Haijun He;Wei Pan;Bin Luo(Center for Information Photonics&Communications,School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]Center for Information Photonics&Communications,School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China

出　　处：《Chinese Optics Letters》2024年第5期22-28,共7页中国光学快报（英文版）

基　　金：This work was supported by the National Key Research and Development Program of China(No.2021YFB2206303);Key Research and Development Plan of Shandong Province(No.2023CXPT100);Sichuan Science Fund for Distinguished Young Scholars(No.2023NSFSC1969);National Student Research Training Program of China(No.20230613037).

摘　　要：For joint modulation format identification(MFI)and optical signal-to-noise ratio(OSNR)monitoring,a simple and intelligent optical communication performance monitoring method is proposed,and the feasibility is demonstrated by digital coherent optical communication experiments.The experiment results show that for all modulation formats,including 28 GBaud polarization division multiplexing(PDM)QPSK/8-QAM/16-QAM/64-QAM,100%MFI accuracies are achieved even at OSNR values lower than the corresponding theoretical 20%forward error correction limit,as well as the high accuracies for OSNR monitoring.Furthermore,the proposed scheme has a reasonable monitoring level when chromatic dispersion and fiber nonlinear effects are varied.

关 键 词：coherent communication optical performance monitoring deep neural network 

分 类 号：TN929.1[电子电信—通信与信息系统]