High utilization of wavelengths and simple interconnection between users in a protection scheme for passive optical networks

被引：22
|
作者：
Chen, Jiajia [1 ,2 ]
Wosinska, Lena [2 ]
He, Sailing [1 ,2 ]
机构：
[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China
[2] Royal Inst Technol, Sch ICT, S-16440 Kista, Sweden
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 5-8期
关键词：
hybrid wavelength-division-multiplexing/time-division-multiplexing (WDM/TDM) passive optical network (PON); protection; wavelength-division-multiplexing (WDM); passive optical network (PON);
D O I：
10.1109/LPT.2007.915655
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 novel protection architecture for passive optical networks (PONs) is presented and evaluated. It is based on the cyclic property of arrayed waveguide gratings (AWGs) and the interconnection between two adjacent optical network units. The proposed scheme is compatible with both wavelength-division-multiplexing (WDM) PONs and hybrid WDM/time-division-multiplexing PONs. It is compared with two existing schemes and shown to have several advantages: 1) 50% less wavelengths is needed; 2) the fiber interconnections are simplified; 3) the connection availability is improved by one order of magnitude.
引用
收藏
页码：389 / 391
页数：3
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