The invention relates to a system and method for realizing broadcast function of wavelength division multiplex passive optical network. The 1 optical line terminal OLT system, connecting the remote node RN through a single-mode fiber, and the remote node RN is connected with N optical network unit ONU; and the remote node RN is mainly composed of 1 reflective optical fiber Prague grating FBG and 1 NxN AWG; sharing broadcast signal wavelength back from the optical fiber Prague grating FBG reflection, through star coupler shunt 1xN, and then sent to the array waveguide grating AWG N input ports; realize the broadcast signal transmission and point-to-point signals through characteristics of arrayed waveguide grating AWG itself; while the uplink signal transmission system point is modulation technology using reflective semiconductor optical amplifier RSOA to achieve the. The scheme realizes the broadcast signal transmission only by changing the system structure, and makes the system balance between cost and performance.
【技术实现步骤摘要】
【技术保护点】
一种波分复用无源光网络实现广播功能的系统,由光线路终端OLT(2)通过单模光纤(8)连接远端节点RN(11),而远端节点RN(11)连接多个光网络单元ONU(17)构成,所述光线路终端OLT(2)由收发机阵列(1、5)、两个波导光栅路由器WGR(4、7)和一个第一环行器(6)构成,其特征在于:a.所述远端节点RN(11)包括一个第二环行器(10)、一个光纤布拉格光栅FBG(12)、一个1xN的星状耦合器(9)和一个NxN的阵列波导光栅AWG(14);其中经一个第二环行器(10)使单模光纤(8)连接所述光纤布拉格光栅FBG(12)和一个第三环行器(15),光纤布拉格光栅FBG ...
【技术特征摘要】
【专利技术属性】
技术研发人员:杨登峰,甘朝钦,曹娅婻,
申请(专利权)人:上海大学,
类型:发明
国别省市:31[中国|上海]
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。