摘要
对光纤到户(FTTH)网络来说,一个低成本高效的灵活接入方案是非常重要的。在波分复用-无源光网络(WDM-PON)中,用户端的收发器件以及波长分配方案是系统的关键。单纤双向单波长方案可以大大简化网络结构,降低用户的接入成本,但这种结构存在很严重的瑞利反向散射的串扰。文章分析了各种不同ONU端光源的实现方式,并分析了若干种抑制瑞利反向散射串扰影响的技术。
A cost-effective solution for flexible access is very important for FTTH network deployment. Transceivers at the user premises and wavelength distribution schemes are crucial for WDM-PON. Bidirectional single-fiber single-wavelength transmis- sion schemes can considerably simplify the network structure and reduce the average access cost of each customer, but Rayleigh backscattering erosstalk has a serious effect on the system. This article analyzes various solutions for ONU light source and several solutions for suppressing Rayleigh backscattering effect.
出处
《光通信研究》
北大核心
2010年第1期15-17,38,共4页
Study on Optical Communications
基金
上海市重点学科和科委重点实验室项目(S30108
08DZ2231100)
