A HIGH-CAPACITY PHOTONIC SPACE-DIVISION SWITCHING-SYSTEM FOR BROAD-BAND NETWORKS

被引:8
作者
SAWANO, T
SUZUKI, S
FUJIWARA, M
NISHIMOTO, H
机构
[1] NEC Corp.
关键词
D O I
10.1109/50.365223
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A high-capacity (128-line) photonic space-division switching system prototype has been developed. All of the developments on polarization-independent LiNbO3 matrix switches, semiconductor optical amplifiers for network loss compensation and three-dimensional optical interconnections for multi-stage switching networks combine to enlarge line capacity. The system is devised to provide both HDTV distribution services that require nonblocking connections and TV phone services that do not necessarily require these connections. It is confirmed that the system has been operating in providing 150 Mbps TV phone services and 600 Mbps HDTV distribution services with high stability. Thus, the system proves to be promising for STM broadband switching systems capable of providing high-speed continuous dense bit-stream services. The system, in concert with an ATM broadband switching system, could provide a full range of cost-effective broadband services from POTS (Plain Old Telephone Services) to HDTV.
引用
收藏
页码:335 / 340
页数:6
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