大截面单模半导体脊形交叉波导传输特性  

Transmission Characteristic of Crassing Waveguide Structure Constructed by Large Single-Mode Rib Semiconductor Waveguide

作　　者：刘育梁[1] 刘恩科[1] 刘志敏[1] 罗晋生[1] 

机构地区：[1]西安交通大学电子工程系,西安交通大学人工智能与机器人研究所

出　　处：《光学学报》1994年第3期292-295,共4页Acta Optica Sinica

摘　　要：运用光束传播法和有效折射率法分析了大截面单模半导体脊形交叉波导结构的传输特性，对Ｙ形，Ｘ形和加宽Ｘ形结构进行了比较．结果表明，在小交叉角时，三种结构具有相似的传输特性；在大交叉角时，它们表现出较大的差异．而在Ｙ型结构中，不存在模式干涉．This paper presents a general theoretical investigation of the crossing waveguidestructures constructed by large- size single- mode rib semiconductor waveguides. The theoretical model is based on beam propagation method and effective index method. Three kinds of structure are analysed and compared. The numerical results show that these structures exhibit similar characteristics at large crossing angles but divergences exist at small crossing angles. It is found that mode-interference dose not exist in y--junction.

关 键 词：半导体波导 交叉 传输 光束传播法 

分 类 号：TN252[电子电信—物理电子学]