利用直调光发实现IPQAM互动信号插播的安装与调试

Using Straight Light Hair to Achieve Interactive Signal Insertion of IPQAM Installation and Debugging

在互动电视用户迅速增长的情况下,为了提高服务质量,利用1 550 nm直调光发实现IPQAM互动信号的插播,既可平滑升级又可节约投资成本,有利于开展双向业务,同时可以不改变网络结构而升级系统,为今后开展FTTH业务打下基础,具有一定的实用价值。

Paper described has in wired digital interactive TV user growth quickly situation Xia , to guarantee interactive business of normal stable run , and improve service quality , I Taiwan using 1 550 nm straight ad-justable light sent achieved IPQAM interactive signal spots of installation and debugging of actual case , can smooth upgrade and can save investment cost , conducive to broadcasting carried out two -way business fast preemption market , while in user number increased Shi , can in not change network structure Xia upgrade sys-tem, also for future GPON carried out FTTH business laying , Has practical value , for reference.