线性对称耦合器的几何表示  

Geometrical Representation of the Linear Symmetric Coupler

作　　者：时坚[1] 马瑞琼[1] 王翀[1] 杨祎[1] 段作梁[1] 苗润才[2] 

机构地区：[1]西安邮电学院电子工程学院,西安710121 [2]陕西师范大学物理学与信息技术学院,西安710062

出　　处：《光子学报》2011年第5期794-797,共4页Acta Photonica Sinica

基　　金：陕西省教育厅自然科学基金(No.09JK725)资助

摘　　要：利用线性对称耦合器两个波导中光场的电矢量构建了布洛赫矢量模型.通过布洛赫矢量的旋转变化使得光在两个波导通道中"跃迁"的过程非常直观.研究发现,随着线性对称耦合器的相位失配变得越严重,光能量在波导间的转换频率增快且转换效率降低,与传统的求解线性对称耦合器耦合波方程所得到的结果是一致的.A Bloch vector model was set up using the light field electric vector in two waveguides of the liner symmetric coupler.The light ＂transition＂ process in two waveguide channels was quite directly with the Bloch vector rotation changing.It was found that the more serious the propagation constant mismatches,the faster the frequency of light energy exchanges and the lower efficiency exchanges,which is equal to the results solved by the traditional equations.

关 键 词：光学开关 线性对称耦合器 耦合波方程 布洛赫矢量 

分 类 号：O431.1[机械工程—光学工程]