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WDM—PONs系统中AMOOFDM信号的多信道传输研究

A Study of Multi-Channel Transmission of AMOOFDM Signals in WDM-PONs
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摘要 为了提高波分复用无源光网络信道的传输能力,提出了自适应调制光正交频分复用的多信道传输方法.首先,在单模光纤连接上采用直接调制激光器和直接检测技术,给出了传输系统的模型;其次,给出了波分复用信道比特位加载算法;最后,用实例分析了40(或80)km直接调制与检测单模光纤连接系统及传统单一调制系统的传输性能.结果表明:自适应调制信号传输能力得到提高,同时最佳动态光发射功率范围和削峰比范围分别提高5dB和3dB. In order to improve the channel's transmission capacity of WDM-PON,this paper presents a multi-channel transmission method of AMOOFDM. First, a transmission system model is provided using directly modulated laser and direct detection (IMDD) in single-mode fiber (SMF) links. Then a bit's adding algorithm of wavelength-division-multiplexed (WDM) is set up. Finally, the transmission capacity of DML-based SMF links is compared to the conventional identical modulation for a 40(or 80) km through the application example. The result shows that the transmission capacity Of adaptive modulation signal is promoted, and the optimum dynamic optical launch power range and clipping ratio range are extended 5 dB and 3 dB respectively.
出处 《军械工程学院学报》 2012年第1期41-43,共3页 Journal of Ordnance Engineering College
关键词 自适应调制光正交频分复用 波分复用无源光网 多信道传输 单模光纤 AMOOFDM WDM PONs mutli-channel transmission SMF
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