取样光纤布拉格光栅的特性分析

Analysis for the Character of Sampled Fiber Bragg Gratings

应用传输矩阵法对取样光纤布拉格光栅的传输特性进行了理论分析 .随着取样光栅各参数的变化 ,得出均匀取样光栅、变迹取样光栅、啁啾取样光栅的反射光谱特性 .经数值计算知道 ,通过改变光栅长度、折射率调制幅度、变迹、啁啾等均可影响反射谱的峰值及带宽 。

Reflective spectrum of sampled fiber bragg grating was analized by a transfer matrix method.The effects of grating parameters on the sampled grating specialities were observed.Through changing the length of the grating,modulating the amplitude of the refractive index,changing the apodized functions,changing the chirped parameters we can get different reflective spectrums with different reflective peaks and bandwidths.So give certain theoretical references in the design of the sampled fiber bragg grating.