大容量无源光网络关键技术  

Key technologies of large capacity passive optical network

作　　者：李博[1] 唐玉春 LI Bo;TANG Yuchun(The 34th Research Institute of CETC,Guilin Guangxi 541004,China;Military Agency of the Ministry of Equipment Development stationed in Shanghai,Shanghai 200437,China)

机构地区：[1]中国电子科技集团公司第三十四研究所,广西桂林541004 [2]装备发展部军代局驻上海地区军代室,上海200437

出　　处：《光通信技术》2019年第10期32-35,共4页Optical Communication Technology

摘　　要：针对人们对接入网带宽需求的不断增长趋势,介绍了开展超100 Gb/s大容量光接入网研究的重要性。着重分析了实现大容量光接入网的3个关键技术,包括高频谱效率的先进制格式、大容量空分复用(SDM)和高灵敏度的相干/自相干探测技术,分别介绍了这些技术在国内外的研究进展,并指出了相应的技术难点。最后,展望了未来超大容量光接入网的研究方向。In view of the increasing demand for bandwidth of access network,the importance of research on over 100 Gb/s large capacity optical access network is introduced.Three key technologies for large capacity optical access networks,including advanced format of high spectral efficiency,large capacity space division multiplexing(SDM)technology and high-sensitivity coherent/self-coherent detection are emphatically analyzed.The research progress of these technologies at home and abroad is introduced,and the corresponding technical difficulties are pointed out.Finally,the future research directions of ultra-large capacity optical access network are prospected.

关 键 词：无源光网络 先进调制格式 空分复用 相干探测 

分 类 号：TN929.11[电子电信—通信与信息系统]