摘要
随着2013年中国移动和中国电信对100G光通信系统商业部署的启动,超100Gbps光通信技术逐渐成为了研究热点。本文基于VPI与Python软件,以PDM-16QAM为调制格式设计了200Gbps的超高速光通信系统,在接收端相干解调后通过DSP算法对色散容限、偏振模色散、非线性进行了补偿,本文对实验结果进行了研究分析,并对基础算法进行改进,将加权算法应用到QPSK分区算法中,使得相位估计更准确,从而得到的解调信号更加接近发送信号,减少了损耗,最终有效地提高了光纤通信系统的质量。
With the 2013 China Mobile and China Telecom to 100G optical communication system commercial deployment start, ultra 100Gbps optical communication technology has become a hot research topic.In this paper, based on VPI and Python software, using PDM- 16QAM modulation format designed 200Gbps ultra high-speed optical fiber communication system, andat the receiving end of the dispersion tolerance, polar mode dispersion, nonlinearity is compensated through DSP algorithms, Inthis paper, the experimental results were studied and analyzed, and the basic algorithm is improved weighting algorithm is appliedto QPSK partition algorithm, so that the phase estimation more accurate, thereby demodulated signal is closer to the transmission signal, reducing wear and tear, effectively improving the quality of optical fiber communication systems .
作者
赵环
刘毓
ZHAO Huan;LIU Yu(School of Electrical Engineering, Xi’an University of Post and Telecommunications, Xi’an 710121, China;chool of Communication and Information Technology, Xi’an University of Post and Telecommunications, Xi’an 710121, China)
出处
《新型工业化》
2016年第9期66-71,共6页
The Journal of New Industrialization
