摘要
为了降低光传送网传输过程中产生的偏振模色散对传输信号质量的影响,采用将光环形器置于光传送网光放大器前端的方法,对光传送网通信传输中的偏振模色散效果进行了仿真。经过偏振模色散抑制后,传输眼图具有更加明显的张开状态,系统的传输性能有一定的提高,在一定程度上抑制了光传送网中存在的偏振模色散,有效改善了信号的质量。结果表明,从添加光环形器前后补偿偏振模色散的误比特率计算结果发现,误比特率的效率提高了约1倍,光环形器对光传送网通信的偏振模色散现象具有显著的抑制效果。该方案对不同传输速度的偏振态光信号延迟进行等效补偿,最终实现补偿偏振模色散的效果。
In order to reduce influence of polarization mode dispersion（ PMD） on the quality of transmission signal, anoptical circulator was applied in the front-end of the optical amplifier of the optical transmission net^vork. The effect of PMoptical transmission network was simulated. After PMD suppression, transmission eye diagram opened more obviously.Transmission performance of the system was improved to a certain extent. The PMD in the optical transmission network was suppressed to a certain extent, and the quality of signal was effectively improved. The results show that the bit error rate of PMD decreases about one time with and without the optical circulator. The optical circulator has a in the optical transport network. The polarization delay at different transmission speeds is compensated equivalently with thisscheme so that the PMD is compensated finally.
作者
朱永琴
田二林
ZHU Yongqin;TIAN Erlin(Mechanical and Electrical Engineering College,Institute of Yellow River Transport,Jiaozuo 454950,China;Computer and Communication Engineering College,Institute of Zhengzhou Light Industry,Zhengzhou 450002,China)
出处
《激光技术》
CAS
CSCD
北大核心
2018年第5期699-703,共5页
Laser Technology
基金
国家自然科学基金资助项目(61501406)
关键词
光通信
偏振模色散
光环形器
误比特率
optical communication
polarization mode dispersion
optical circulator
bit error rate
