摘要
部署缺乏灵活性是光纤宽带接入的主要问题之一,文章提出了一种RoF(光载无线)技术在宽带接入中的应用系统,光纤传输选取较低的频率以降低对激光器的要求,并通过SDM(副载波复用)和WDM(波分复用)的结合来提高光纤利用率,根据应用场景选用定向微波天线进行多点覆盖。该方案实现了单光纤最多承载48个用户、单用户最高35 Mbit/s速率的宽带接入。实验结果表明,该系统可有效实现用户宽带接入,并且成本低、易实现。
Lack of flexibility in the deployment is one of the main issues of fiber broadband access. An application system is proposed to use RoF （Radio over Fiber） technology in broadband access. In fiber transmission, a lower frequency is selected to reducethe requirements for laser,and improve the utilization of fiber by combining SDM and WDM. According to the applica- tion, directional microwave antenna is selected to cover multi-user. In the system, maximum 48 users can be supported over one single fiber and the speed for each user can reach 35 Mbit/s. Experimental results show that the system can effectively a- chieve the broadband access, which is more economic and easier to realize.
出处
《光通信研究》
北大核心
2016年第6期56-58,71,共4页
Study on Optical Communications
基金
国家科技重大专项资助项目(2016ZX03001002)
