一种非对称结构光纤梳状滤波器的分析  

Analysis of a Comb-Filter with Non-symmetrical Framework

作　　者：鲁怀伟[1] 蒲会兰[1] 马莉[1] 罗冠炜[2] 

机构地区：[1]兰州铁道学院基础科学系,兰州730070 [2]兰州铁道学院机电与动力工程学院,兰州730070

出　　处：《光子学报》2003年第3期314-317,共4页Acta Photonica Sinica

基　　金：国家自然科学基金资助项目 ( 10 172 0 42 )

摘　　要：提出了一种由光纤光栅与光纤方向耦合器组成的光学梳状滤波器的理论模型 ,详细地分析了该滤波器的输出特性 ,由传输矩阵法推导出了当光纤光栅为均匀Bragg光栅时 ,该模型输出光谱与有关参量之间关系的数学表达式 ,对决定滤波器输出光谱特性及其规律的相关参量进行了详细讨论 ,其结果可以为今后该器件的制作及关键技术的解决提供参考 .A kind of fiber Comb-Filter using fiber directional coupler and sampling fiber grating is presented, and its transmission characteristics are studied in detail. The mathematical formulation of the relationship between the transmission spectra out of the filter and relative parameters is obtained when the fiber grating is evenly fiber Bragg grating. Based on this, the reflection spectra graph of the filter is gained under a certain group of parameters given. The influence of relative structure parameters on the model transmission characteristics and rules is analyzed, and optimum structure parameters are obtained. The results can be referenced by facture of this kind of apparatus and the solution of key technology.

关 键 词：光纤光栅 梳状滤波器 光纤方向耦合器 

分 类 号：TN253[电子电信—物理电子学]