扩展多模波导全内反射型Y分叉开关的分析  

Analysis of Y Branch Switch Based on Total Internal Reflection of Multimodes Waveguide

作　　者：占恒正[1] 江晓清[1] 陈克坚[1] 王明华[1] 

机构地区：[1]浙江大学信息与电子工程学系,杭州310027

出　　处：《光学学报》2003年第10期1187-1190,共4页Acta Optica Sinica

基　　金：国家自然科学基金 (6 0 1770 12 );国家重点基础研究发展规划 (G19990 3310 4 );国家教育部骨干教师资助课题

摘　　要：利用全内反射和波导理论 ,分析了多模波导反射区全内反射 (TotalInternalReflection ,TIR)型光开关的物理模型和降低串音和损耗的原因 ,给出改进Y分叉全内反射型光开关特征的近似计算方法。数值模拟表明 ,扩展多模波导的Y分叉全内反射开关的串音和损耗可分别下降 15 .5dB和 0 .6 5dB以上。The reason that multimode waveguide of total internal reflection (TIR) based Y-branch switch has less cross-talk and less loss is analyzed by utilizing waveguide theory. A physical model of TIR is given and an approximate calculation method of improved TIR Y-branch switch is obtained. Simulation shows that the cross-talk and loss of the multimode waveguide of TIR Y-branch switch decrease by 15.5 dB and 0.65 dB respectively.

关 键 词：多模波导 全内反射型Y分叉开关 光开关 计算方法 数值模拟 串音 损耗 光波导 

分 类 号：TN252[电子电信—物理电子学]