融合三元组及复值CNN的PS系统光纤非线性补偿方案  

Optical fiber nonlinearity compensation scheme for PS system integrating triplet and complex-valued CNN

作　　者：范亚萱 王鸣娇 杜蕾 乔京帅 蓝海龙 李旭升 张义宁[4] 杨立山 许恒迎 白成林[1,2,3] FAN Yaxuan;WANG Mingjiao;DU Lei;QIAO Jingshuai;LAN Hailong;LI Xusheng;ZHANG Yining;YANG Lishan;XU Hengying;BAI Chenglin(Shandong Provincial Key Laboratory of Optical Communication Science and Technology,Liaocheng Shandong 252000,China;School of Physics Science and Information Engineering,Liaocheng University,Liaocheng Shandong 252000,China;Liaocheng Key Laboratory of Industrial-Internet Research and Application,Liaocheng Shandong 252000,China;School of Mathematical Sciences,Liaocheng University,Liaocheng Shandong 252000,China)

机构地区：[1]山东省光通信科学与技术重点实验室,山东聊城252000 [2]聊城大学物理科学与信息工程学院,山东聊城252000 [3]聊城市工业互联网研究与应用重点实验室,山东聊城252000 [4]聊城大学数学科学学院,山东聊城252000

出　　处：《光通信技术》2024年第6期82-88,共7页Optical Communication Technology

基　　金：国家自然科学基金项目(62371216、61501213、62101229)资助;山东省自然科学基金项目(ZR2020MF012、ZR2020QF005、ZR2022MF253)资助;聊城大学博士科研启动基金(318051834、318051835)资助。

摘　　要：针对概率整形(PS)系统光纤传输中的非线性损伤问题,提出了一种融合三元组及复值卷积神经网络(T-CCNN)的PS系统光纤非线性补偿方案。首先将经过线性损伤处理后的符号生成二维三元组,再将这种三元组输入到T-CCNN中进行光纤非线性补偿,并保留实部与虚部间相位信息的相关性。仿真结果表明:在最佳发射功率下传输800 km,三元组边长长度为13时,该方案Q因子的增益为1.39 dB;当达到硬判决前向纠错阈值时,该方案比DBP-1StPs方案可增加约180 km的传输距离。To address the issue of nonlinear impairments in optical fiber transmission for probability shaping(PS)system,a novel optical fiber nonlinearity compensation scheme integrating triplet and complex-valued convolutional neural networks(T-CCNN)is proposed.Initially,symbols processed through linear impairment correction are transformed into two-dimensional triplets.These triplets are then fed into the T-CCNN for fiber nonlinearity compensation,while preserving the correlation of phase information between the real and imaginary parts.The simulation results show that at the optimal transmit power,when transmitting over 800 km with a triplet side length of 13,the gain in the Q-factor of this scheme is 1.39 dB.Moreover,when reaching the hard decision forward error correction threshold,this scheme can increase the transmission distance by approximately 180 km compared to the DBP-1StPs scheme.

关 键 词：光纤非线性补偿 概率整形 微扰理论 

分 类 号：TN913.7[电子电信—通信与信息系统]