脊的位置变化对双脊波导单模带宽的影响  

Dependence of Ridge Position on Dominant-mode Bandwidth of Double-ridge Waveguide

作　　者：朱祥贤[1] 孙岐峰[1] 杨永[1] 

机构地区：[1]淮安信息职业技术学院,江苏淮安223000

出　　处：《半导体光电》2009年第5期676-678,共3页Semiconductor Optoelectronics

摘　　要：采用亥姆霍兹方程有限元方法分析了非对称双脊波导脊的变化对其主模单模带宽的影响,结果表明,可以通过改变脊的尺寸和位置来调节单模带宽。与已有文献报道的结果进行了对比,结果显示利用该计算方法所得数据精确有效。There are lots of reports on the research of double-ridge waveguide. But the ridge diver center of double-ridge waveguide is seldom discussed and reported. The influence of the ridge position on the bandwidth of the dominant mode in a double-ridge waveguide is analyzed with the finite-element method. Transfer bandwidth is given in different ridge positions. Numerical results demonstrate that the method is precise and efficient. So the bandwidth can be adjusted by changing the ridge dimensions as well as by adjusting its position.

关 键 词：双脊波导 亥姆霍兹方程 有限元法 单模带宽 

分 类 号：TN256[电子电信—物理电子学]