The utility model discloses a hybrid time and wavelength division multiplexing passive optical network system, optical line terminal, mainly by the optical distribution network and user n unit; the optical line terminal through time division multiplexing and wavelength division multiplexing combination of light signal, the long distance single-mode optical fiber transmission and optical distribution network, and the optical distribution network will light signal is transmitted to each optical network unit. The system adopted a new time-division multiplexing and wavelength division multiplexing combined, using optical switch array and a high-speed arms Maher had Del modulator to time the optical signals of different wavelength. This method can simplify the complexity of the system protocol, greatly improve the utilization of the system bandwidth, thereby reducing the system cost, increasing the communication system no relay transmission distance, and enhancing the late upgrade capability of the system.
【技术实现步骤摘要】
【技术保护点】
一种时分波分混合复用无源光网络系统,主要由光线路终端(OLT)、光分配网(ODN)和n个用户单元(ONU)组成;其特征在于: 光线路终端(OLT)包括n个分布式反馈激光器(1‑1)、n个光分路器(1‑2)、n个马赫‑曾德尔光开关(1‑3)、3个阵列波导光栅复用器(1‑4、1‑5、1‑13)、双并行马赫‑曾德尔调制器(1‑6)、混频器(1‑7)、本地高频振荡器(1‑8)、直流偏置控制器(1‑10)、光耦合器(1‑11)、n个光电探测器(1‑14)和第一掺铒光纤放大器(1‑12);每个分布式反馈激光器(1‑1)的输出端连接一个光分路器(1‑2)的输入端;每个光分路器(1‑2)的 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:陈明,李卫,李海鸥,何倩,陈名松,陈辉,
申请(专利权)人:桂林电子科技大学,
类型:新型
国别省市:广西;45
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