【摘要】 分析研究了采用分布式光纤喇曼放大器的 DWDM光纤传输系统中 ,瞬态泵浦消耗噪音对信号眼图、误码率等性能指标的影响 ,比较了不同比特率和信道数时这种噪音所带来的影响 ,给出了模拟仿真结果 ;分析并比较了瞬态泵浦消耗噪音与喇曼串扰噪音对系统性能影响的程度 ,同时分析了不同码型所对应的瞬态泵浦消耗噪音 ,发现归零码 ( RZ)具有更好的噪音特性更多还原

【Abstract】 It studies the effect of the noise induced by the instantaneous pump power deletion on the system performance(such as eye diagram and bit error rate) of optical fiber DWDM transmission systems.Comparison is given to the degree of the effect for different channel number and bit rate.Simulation results are presented.The performance degradation induced by this kind of noise and induced by the Raman crosstalk is also compared.Analysis is performed on the magnitude of this kind of noise and its relation to the bit pattern.It is concluded that RZ waveform can tolerate the noise better.更多还原