摘要
分析了导模-辐射模耦合理论和利用经塔米尔的传输回路方法论改造过的扰动理论进行解析的结果。根据上述理论对1.3μm GeSi/Si异质结波导光栅耦合器波导层的厚度、槽形、长度、宽度、周期、槽深等做了近似的设计。
The coupling theory of the guided mode-radiating mode and the analytical results obtained by using the disturbance theory rebuilt with Tamir＇s methodology of transmission circuit are analyzed. According to the above theories, the thickness, groove shape, length, width, period and groove depth of the waveguide layer of a 1.3μm GeSi/Si heterojunction waveguide grating coupler is approximately designed.
出处
《红外》
CAS
2008年第1期24-27,共4页
Infrared
基金
山西省自然基金(2007011047)
关键词
光栅耦合器
GeSi/Si异质结
辐射系数
耦合系数
waveguide grating coupler
GeSi/Si heterojunction
radiation coefficient
coupling coefficient
