The Application Of Automatic Power PreEquilibrium And Clock Technology In DWDM System

In the DWDM communication network systems, it occurs to the system that both optical power and SNR of the receiver are decreased due to external reasons, thus the stability of the network are influenced. Through theoretical and technical analysis, taking the equipment of OptiX BWS 1600Gbit/s DWDM created by Huawei as research foundation, combined with the practical project construction of the backbone transmission network of Beijing Netcom, this paper presents some measures such as increasing APE and clock protection, which enables the equipment to regulate the optical power of each channel sender automatically. In this way, we can make corresponding regulations according to equipment, integrated circuit board etc which have different functions under the operation platform of control system of terminal so as to make the system recover to the optimal reception in the shortest time. This paper compared the performance of using APE technology with that of not using APE technology, the result shows that adopting the function of APE is an important approach to enhance the stability of the network. This paper also has given several methods of testing clock which are able to guarantee the need of business.