【摘要】 在研究了入纤功率、光器件的插入损耗以及非归零码中1码出现的概率对系统误码率影响的基础上,提出了一种基于混合光纤放大器的波分复用(WDM)光纤传输系统设计方案,并对该系统的噪声特性进行了详细地研究。提出了一种抑制前向噪声的有效方法,实现了20路WDM信号320km无误码传输。试验结果对基于混合光纤放大器的波分复用光纤传输系统的设计具有一定的指导意义。更多还原

【Abstract】 The effects of launch power, the insertion loss of optical devices and the mark probability in the NRZ on BER have been researched. A WDM fiber transmission system design plan based on hybrid fiber amplifier has been brought forward. The noise characteristic of the system is researched in detail, and an effective method to restrain forwand noise is put forward. It is applied in a 20channel WDM system, and 320km errorfree transmission is realized. The results are instructive to design WDM fiber transmission systems based on hybrid fiber amplifier.更多还原