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随着单信道传输速率(40Gb/s 或更高)的提高和传输带宽的增加,色散已成为光纤传输系统中非常突出的问题。本论文通过理论分析和实验结果证明利用线性啁啾布拉格光纤光栅(CFBG)可以作为一种补偿高速传输系统色散的新方法,由于光纤光栅对温度有敏感特性,我们通过改变光栅的温度而引起 CFBG 的布拉格波长、时延及色散的改变,从而实现 CFBG 的色散补偿。
With the increase of single channel transmission rate (40Gb / s or higher) and transmission bandwidth, dispersion has become a very prominent issue in optical fiber transmission systems. In this dissertation, theoretic analysis and experimental results prove that using chirped fiber Bragg grating (CFBG) can be used as a new method to compensate the dispersion of high speed transmission system. Due to the temperature sensitivity of fiber grating, we change the grating temperature to cause CFBG The Bragg wavelength, delay and dispersion changes, in order to achieve CFBG dispersion compensation.