FSO——本地接入市场新焦点  

FSO——New focus in Local Access Market

作　　者：李珊[1] 

机构地区：[1]信息产业部电信研究院

出　　处：《世界电信》2001年第12期37-40,共4页World Telecommunications

摘　　要：本地宽带接入技术———自由空间光通信 (FSO)是一种视距技术 ,在太赫兹频段发射激光或光脉冲来传输分组数据。FSO的高带宽、低成本、易安装的优势使其可以作为本地接入一种理想的补充形式 ,不过FSO需要解决的问题包括由恶劣天气引起的信号衰减 (尤其是雾 )、由建筑物摆动导致的激光不能对准、安装权限和受地域限制。FSO可以应用于校园局域网、紧急情况备用。Free space optics (FSO), the local broadband access technology, is a line-of-sight technology, delivering packet data through laser or optical pulse at the band of Tera Hertz. Wide band, low cost and easy installation makes it an ideal supplement to local access. However, FSO needs to solve several problems, including disturbance caused by atrocious weather (especially fog), fail in precise targeting caused by swinging of the building, installation authorization and geographical limitation. FSO could be applied in campus LAN, emergency, calamity rescue and short distance international private line.

关 键 词：本地接入市场 自由空间光通信 本地宽带接入 通信网 

分 类 号：TN915.6[电子电信—通信与信息系统]