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提出了一种用于设计密集波分复用全光网络中梳状滤波器的方法 ,该器件利用法布里珀罗腔反射光相位的非线性性质 ,结合光的相位在一定光程差下随频率呈线性周期变化的特点 ,通过使这样两束相位匹配的光发生干涉 ,得到所需滤波特性。运用薄膜特征矩阵对模型进行了模拟计算 ,并分析了计算结果 ,论证了这种结构的可行性。
A method for designing a comb filter in an all-optical network with dense wavelength division multiplexing is proposed. By utilizing the nonlinear nature of the reflected light phase of the Fabry-Perot cavity and combining the phase of the light with a certain optical path difference As the frequency varies linearly with periodicity, the desired filter characteristics are obtained by interfering with the two phase-matched lights. The film characteristics matrix is used to simulate the model, and the calculation results are analyzed. The feasibility of this structure is demonstrated.