考虑光波分复用的新型宽带光接入网单元技术研究

This project established the theoretical model of access network for two-way WDM-PON and PS-PON, that is the same WDMA/TDMA structure for uplink/downlink. By the power split allocation, we established a flexible and extensible network structure. At the same time, considering the possibility of increasing the ONU without EDFA in downlink, the non-linearity with EDFA, the cost analysis for the ONU increase, we developed the optimum scheme. In theoretical aspects, we simulate the performace of IP services for our system, including the performance of burst receice, MAC for IP, block rate of access, and the system design. Further, we developed the experimental system.

本课题是一种结合WDM技术和光纤无源分束结构的新型光纤接入网络单元技术的研究，在上滦型肪捎肳DM和光纤无源分束复合的两级分路结构。使之既有利于在较低的总线路速率下实现宽带的信号接入，同时又能兼顾成本，系统的灵活性及可扩展性，并考虑在该结构中基于IP协议的信元的媒体接入控制及突发模式的接受等问题。