摘要
文章首次提出了基于单边带光正交频分复用(OOFDM)的TDM/WDM-PON方案并建立了一个通道的系统模型。下行采用80Gbit/s的单边带OFDM信号,节约WDM通道带宽资源,减小色散的影响,OLT调整各ONU的子载波个数即可实现动态带宽分配。上行采用20Gbit/s的NRZ信号。利用半导体光放大器(SOA)的增益饱和特性实现了ONU的无色管理。对系统模型进行了仿真,并对结果进行了分析。
A TDM/WDM-PON scheme based on single side band（SSB） OOFDM（optical orthogonal frequency division multiple） is proposed and a system model of one channel is made.Downstream SSB OFDM signal at 80Gbit/s is used to save the bandwidth resource of a WDM channel and limit the influence of dispersion.Dynamic bandwidth allocation can be achieved by adjusting the subcarrier number for each ONU.Upstream NRZ signal is 20Gbit/s and colorless ONU is realized by the gain saturation of semiconductor optical amplifier（SOA）.This system model is simulated and the simulation results are analyzed.
出处
《空间电子技术》
2010年第4期8-11,88,共5页
Space Electronic Technology
关键词
正交频分复用
单边带
均衡
无色
Orthogonal frequency division multiple Single side band Equalization Colorless
