|
|
|
| The Whole Monitor to the Performance of Optical Data Stream in All-optical Network |
| Zhu Bo①; Chen He-ming①; Yang Xiang-lin①; Fan Hong①; Ma Zheng-bei①;Qian Chen①; Hou Shao-hua①; Zou Jian-hua①;Wang Xiao-jun②; Dong Xiao-yan② |
| ①The Optical Communication Engineering and Technology Research Centre of Nanjing University of posts and telecommunications, Nanjing 210003, China; ②The Communication Networks Engineering and Technology Research Centre of Jiangsu Province, Nanjing 210003, China |
|
|
|
|
Abstract Wavelength-Division-Multiplexing (WDM) multi-granularity traffic switching all-optical network is the evolution direction of the recent optical transport networks. In this paper, the practical WDM multi-granularity traffic switching testing network is constructed and a novel method using eye diagram to monitor optical performance in the network is proposed. The method is demonstrated in the reconfigurable WDM multi-granularity traffic switching all-optical network and it results that it can realize supervision of optical signal to noise ratio, time jittering, channel power, extinction ratio and bit error rate of optical data stream of any wavelength channel in the network. The method is transparent to signal protocol and bit rates and is able to distinguish between different optical impairments.
|
|
Received: 16 July 2007
|
|
|
|
|
|
|
|
|
2009, Vol. 31 
