摘要
以半导体矩形波导材料为例 ,提出了正在研究中的全内反射型光控光开关的光注入及光生载流子对折射率影响的分析模型。得出在控制光照射方向上半导体材料的折射率随控制光强度变化而变化的分布情况。并分别得到了 1 .5 5μm和 1 .3 1μm通讯波长的光控光开关的控制光 (0 .8μm)
This paper makes semiconductors for an example ,the analysis model of the optical injecting and the change in refractive index of semiconductor induced by photo carrier is presented. This model is helpful on research total internal reflection type all optical switch. We get the refractive index distribution in the semiconductor versus light intensity in the direction of controlling light. And we get the thresholds of the controlling light (0.8μm) in the optically controlled optical switch at wavelength of 1.55μm and 1.31μm.
出处
《光学仪器》
2002年第4期34-38,共5页
Optical Instruments
关键词
光生载流子
半导体波导材料
折射率
光控光开关
optical absorption
photo induced carriers
the change in refractive index
optical switch controlled by light
