摘要
最大可能地降低光节点覆盖用户数,建立无源电缆分配网络,既可提高有线电视信号传输质量,又符合双向传输网络的技术要求,由此导致光纤节点数量的增加,光功率需求剧增,必须使用多级光放大才能解决这个问题。通过对多级光放大链路指标的分析和计算得出结论:对于嵩明县区域性网络改造,采用三级光纤放大器传输方案是可行的。
The biggest possible to reduce optical node cover of households, establish a passive cable distribu- tion network, not only can improve the quality of the signal transmission, and in conformity with the technical requirements of two-way transmission network, which leads to the increase in the number of optical node, opti- cal power demand has increased sharply, must use multi-stage optical fiber amplifier can solve the problem. This article through the analysis and calculation of the conclusion ： For Songming county regional network trans- formation, level 3 optical amplifier transmission scheme is feasible.
出处
《中国有线电视》
2012年第10期1163-1166,共4页
China Digital Cable TV
