啁瞅光纤光栅的传输特性与切趾变迹研究

An investigation on the transmission properties of chirped and apodized fiber gratings

从麦克斯韦电磁理论导出的耦合模方程出发,应用研究非均匀光纤光栅的传输矩阵法数值研究了啁啾光栅前向波的能量传输、反射谱和时延特性,进而分析比较光纤光栅切趾变迹对反射和时延的影响以及在色散管理方面的应用。通过研究找出了一种余弦切趾函数的光纤光栅,从其特性分析可知这种变迹可以应用在波分复用/解复用、多通道的色散补偿、多通道滤波器等方面。

Starting from the coupled- mode equations based on the Maxwell＇ s electromagnetic theory,the forward- wave energy transmission, the reflection spectrum and time delay of apodization chirped fiber gratings are studied by using the transfer matrix approach method. Therefore the different apodization effect on the reflection spectrum and time delay and their applications in dispersion management are discussed. It is shown that the cosine- apodized chirped fiber grating has some characteristics which can be applied in the wavelength division multiplexing / de - multiplexing, dispersion, compensation of multi - channel and multi - channel filter.