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正交频分复用无源光网络(OFDM-PON),抗色散能力强,频谱利用率高,与现有的通信网络兼容性强,这些特点使其成为下一代的无源光接入网的标准之一。文章介绍了OFDM的基本原理,另外给出了所设计的一种基于RSOA和高阶QAM调制(32QAM)的OFDMA-PON通信传输系统。在这个系统中,不仅可以实现接收端ONU的无色化,还可以大大减少接收端系统的复杂度。通过我们的实验分析,验证了该系统的可行性。
Orthogonal Frequency Division Multiplexing (OFDM-PON) passive optical network (OFDM-PON), anti dispersion ability, high spectrum efficiency, compatibility with existing communication networks, these features make it the next generation of passive optical access network One of the standards. This paper introduces the basic principle of OFDM and gives an OFDMA-PON communication transmission system based on RSOA and high-order QAM modulation (32QAM). In this system, it not only can realize the colorless of the ONU of the receiving end, but also can reduce the complexity of the receiving end system greatly. Through our experimental analysis, the feasibility of the system is verified.