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提出了一种基于光纤马赫 曾德尔干涉仪和取样光纤光栅的新型全光纤梳状滤波器。通过对器件的工作原理的理论分析 ,发现耦合器的分束比、取样光纤光栅的光谱特性和干涉臂长差是决定这种全光纤梳状滤波器性能的三个主要因素。并对器件性能进行了模拟计算。实验上获得了信道间隔为 1 0 0GHz的初步实验结果。
A new all-fiber comb filter based on fiber Mach-Zehnder interferometer and sampling fiber grating is proposed. Through the theoretical analysis of the working principle of the device, it is found that the split ratio of the coupler, the spectral characteristic of the sampled fiber grating and the difference in the length of the interfering arm are the three main factors that determine the performance of the all-fiber comb filter. The performance of the device was simulated. Experimental results obtained preliminary experiments with channel spacing of 1 0 0GHz.