TWC and AWG based optical switching structure for OVPN in WDM-PON  

作　　者：白晖峰 陈雨新 王秦 

机构地区：[1]Beijing NARI Smart Chip Microelectronics Company Limited

出　　处：《Optoelectronics Letters》2015年第2期130-133,共4页光电子快报（英文版）

基　　金：supported by the National High Technical Research and Development Program of China(No.2012AA050804)

摘　　要：With the rapid development of optical elements with large capacity and high speed, the network architecture is of great importance in determing the performance of wavelength division multiplexing passive optical network （WDM-PON）. This paper proposes a switching struc^re based on the tunable wavelength converter （TWC） and the ar- rayed-waveguide grating （AWG） for WDM-PON, in order to provide the function of opitcal virtual private network （OVPN）. Using the tunable wavelength converter technology, this switch structure is designed and works between the optical line terminal （OLT） and optical network units （ONUs） in the WDM-PON system. Moreover, the wavelength assignment of upstream/downstream can be realized and direct communication between ONUs is also allowed by privite wavelength channel. Simulation results show that the proposed TWC and AWG based switching structure is able to achieve OVPN function and to gain better performances in terms of bite error rate （BER） and time delay.

关 键 词：Arrayed waveguide gratings Network architecture Optical communication Optical waveguides Switching Switching systems Telecommunication networks Time delay Virtual private networks WAVEGUIDES Wavelength division multiplexing 

分 类 号：TN929.1[电子电信—通信与信息系统]