16信道高速传输系统中的DPSK码型性能分析  

Performance analysis of DPSK code in 16-channel high speed transmission system

作　　者：党绪文 王敬 金琪 李勇奇 张克非[2] DANG Xuwen;WANG Jing;JIN Qi;LI Yongqi;ZHANG Kefei(School of Science,Southwest University of Science and Technology,Mianyang Sichuan 621000,China;School of Computer Science and Technology,Southwest University of Science and Technology,Mianyang Sichuan 621000,China)

机构地区：[1]西南科技大学理学院,四川绵阳621000 [2]西南科技大学计算机科学与技术学院,四川绵阳621000

出　　处：《光通信技术》2018年第12期20-23,共4页Optical Communication Technology

基　　金：四川省大学生创新创业训练计划资助项目(编号:201710619070)资助;国家级大学生创新创业训练计划资助项目(编号:201710619022)资助;四川省科技厅重点研发项目(18ZDYF)资助

摘　　要：为更好提升高密度、高传输速率密集波分复用系统的传输性能,对比分析了33%和50%归零差分相移键控码及67%载波抑制归零差分相移键控码的传输特性。通过Optisystem软件建立16信道、100GHz信道间隔的10Gb/s和40Gb/s密集波分复用传输系统,从码型抗色度色散、偏振模色散和非线性方面进行分析与讨论。仿真结果表明:10Gb/s传输速率,33%RZ-DPSK色散容忍度和抗非线性能力最优;40Gb/s传输速率,67%CRZ-DPSK在非线性和偏振模色散方面有不错的Q值平坦性,但色度色散对其影响较大。In order to improve the transmission performance of high density,high-transmission dense wavelength division multiplexing systems,33%RZ-DPSK,50%RZ-DPSK,and 67%CRZ-DPSK transmission characteristics are compared and analyzed.The 16channels,100GHz channels spacing 10Gb/s and 40Gb/s dense wavelength division multiplexing transmission systems are established in the Optisystem software to analyze and discuss the modulation patterns from chromatic dispersion,polarization mode dispersion,and nonlinearity.Simulation results show that,with a transmission rate of 10Gb/s,the 33%RZ-DPSK has the best dis- persion tolerance and nonlinearity resistance.At 40Gb/s transmission rate,67%CRZ-DPSK has a good Q flatness in terms of nonlinearity and polarization mode dispersion,but chromatic dispersion has a great influence on it.

关 键 词：传输特性 波分复用 RZ-DPSK Q因子 

分 类 号：TN911[电子电信—通信与信息系统]