摘要
根据相干光OFDM(CO-OFDM)传输系统的理论模型,利用Opti System软件,仿真了CO-OFDM系统,对电光调制和光电检测模块进行了深入的讨论,并对不同调制方式和不同子载波下的系统进行了详细的比较。通过仿真结果可以看出,CO-OFDM系统有较强的抗色散能力和较高的频带利用率。
The Coherent Optical Orthogonal Frequency Division Multiplexing（CO-OFDM） system is simulated using OptiSystem software in the paper.The electro-optic modulation and photoelectric detection in CO-OFDM are studied.The performance of CO-OFDM system with different modulation mode and different number of sub-carrier are compared.The simulation results show that the CO-OFDM system has good anti-dispersion ability and higher bandwidth efficiency.
出处
《光通信技术》
CSCD
北大核心
2011年第4期41-44,共4页
Optical Communication Technology
关键词
光通信
相干光正交频分复用
电光调制
光电检测
optical communication
CO-OFDM
electro-optic modulation
photoelectric detection
