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本文从光纤色散和啁啾光栅所提供的延时两方面对光通信系统中的色散补偿进行了分析，表明每隔放大器的中继距离插入一啁啾光栅进行色散补偿可实现信号无失真传输，在此基础上提出了在中继器中同时实现全光信号放大和色散补偿的光纤通信系统方案。
In this paper, the dispersion compensation of optical communication system is analyzed from two aspects of the delay provided by the fiber dispersion and the chirped grating. It is shown that the chirped grating can be inserted into a chirped grating for dispersion compensation to achieve the signal transmission without distortion, On this basis, a scheme of optical fiber communication system that simultaneously amplifies all the optical signals and compensates dispersion is proposed in the repeater.