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引用次数: 0
摘要
本文的主要目的是对光纤传输进行建模和仿真。讨论了利用波分复用(WDM)系统提高光纤传输链路容量的方法。在实际光传输链路上对光纤传输链路的参数进行了测量，并建立了仿真模型。以两种方式对光纤传输链路容量的增加进行了仿真。一是提高WDM系统各个信道的传输速度，二是增加单个信道速度较低的WDM系统信道数量。仿真结果表明，第二种方法可以提供更好的WDM服务质量。额外的实验是在现有的ITU T G.655光纤上进行的，该光纤用于WDM系统，其参数被测量。用4路和16路WDM系统的误码率和Q参数来检验所提方案的质量。
Modeling and simulation of fiber optic transmission links
The main aim of the paper is modeling and simulation of fiber optic transmission. It also deals with ways to increase the capacity of fiber optic transmission links by using WDM (Wavelength Division Multiplexing) system. The parameters of the fiber optic transmission link were measured on a real optical transmission links and a model for simulation was set up. A simulation of increasing the capacity of a fiber optic transmission link was made in two ways. The first one is to increase the transmission speeds of the individual channels of the WDM system, and the second one is to increase the number of WDM system channels with lower individual speeds. The simulation results showed that the second method provides better quality of WDM service. The additional experiment was done on an existing ITU T G.655 optical fiber intended for WDM systems whose parameters were measured. Bit error rate and Q parameter for WDM system of 4 and 16 channel was used to check quality of proposed solution.
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