摘要
相干光正交频分复用(CO-OFDM)技术是一种新的复用技术,在高速长距离传输系统研究中具有很大的吸引力。该技术具有相干检测和OFDM的双重优点,不仅频谱利用率高,还能有效抵抗色度色散和偏振模色散(PMD),而且能在现有的网络基础设施上升级,扩容也方便,所以在高速率、大容量和长距离传输系统中有广阔的应用前景。本文提出了CO-OFDM单模光纤系统实验模型,并分析了不同调制方式、ONSR以及传输距离对系统性能的影响,对后续100Gbps传输系统的搭建具有极大的参考价值。
Coherent optical orthogonal frequency division multiplexing （CO-OFDM） technology, as a new multiplexing technology, is very attractive in the study of high-speed long haul transmission systems.The coherent detection together with OFDM technology has double advantage,not only the system has high spectrum efficiency, but also can resist chromatic dispersion and polarization mode dispersion（PMD） effectively. Except that,it can make use of the existing network infrastructure, expansion or upgrade is convenient as well.As a result, CO-OFDM has broad application prospects in high-speed,large capacity and long-distance transmission system.This paper proposed experimental model of single-mode optical fiber system, and analyzed the effects of the different modulation methods,ONSR and distance on system performance.The experimental result has a valuable reference for 100Gbps transmission system
出处
《软件》
2010年第11期82-86,共5页
Software
