平面波导环形格子结构型光交错复用器的设计  

An Optimized Design of Interleaver Filter Based on Planar Lightwave Circuit-Type Lattice Structure

作　　者：张娟[1] 刘立人[1] 周煜[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学学报》2004年第9期1269-1273,共5页Acta Optica Sinica

基　　金：国家自然科学基金 (6 0 1770 16 );国家科技部 (2 0 0 2CCA0 35 0 0 );上海市科委科技计划 (0 12 2 6 10 11)资助课题。

摘　　要：在分析比较双折射晶体偏振光干涉型和平面波导环形格子结构型光交错复用滤波器原理的基础上 ,揭示了两者在光谱透射率的数学上的等效性 ,给出了两者结构参量之间的等效关系 ,可以直接利用经简单傅里叶级数对比法获得的晶体的结构参量对平面波导环形格子结构型光交错复用滤波器进行结构设计。利用该方法对一个两级平面波导环形格子结构型光交错复用滤波器进行了优化设计 ,信道隔离度比文献中结构提高了近 5dB ,而且结构参量有多种组合。与利用复杂的格子理论计算仅获得一组结构参量相比 ,该方法更加简单、有效。On the basis of analyzing the principles of interleaver filters of the interference of polarized light and planar lightwave circuit-type lattice structure, the equivalent mathematical representation of the spectral transmittance of the two kinds of interlearers is revealed. The equivalent relationships of the structural parameters of them are given. The interleaver filter baged on planar lightwave circuit type lattice structure can be designed through directly utlizing the structure parameters of crystal obtained by the method of companing Fourier series. A two-stage lattice structural interleaver filter is designed by the use of the method. Compared with only one group of structural parameters obtained using a lattice theory proposed recently, the designing method is more simple and efficient for isolation to be increased by 5 dB and many groups of structural parameters to be obtained.

关 键 词：光纤通信技术 密集波分复用 光交错复用器 偏振光干涉 定向耦合器 相位延迟线 

分 类 号：TN929.11[电子电信—通信与信息系统]