用Synopsys TCAD计算机模拟修正的指数I(U)依赖性和AlGaAs SCH激光器的光学效率
Modified exponential I(U) dependence and optical efficiency of AlGaAs SCH lasers in computer modeling with Synopsys TCAD
摘要:
利用Synopsys公司的Sentaurus TCAD软件和开源软件对具有独立限制异质结的AlGaAs激光器的光电特性进行了模拟。我们提出了一个修改的指数$I-V$依赖来描述电性能。一个简单的分析,唯象模型被发现来描述光学效率,$η$,具有很高的精度,通过使用两个参数。示出了刚好在激光偏移电压之上的差分电阻率$r=dU/dI$与功能性$η(U)$依赖性之间的联系。
英文摘要:
Optical and electrical characteristics of AlGaAs lasers with separate confinement heterostructures are modeled by using Synopsys's Sentaurus TCAD, and open source software. We propose a modified exponential $I-V$ dependence to describe electrical properties. A simple analytical, phenomenological model is found to describe optical efficiency, $η$, with a high accuracy, by using two parameters only. A link is shown between differential electrical resistivity $r=dU/dI$ just above the lasing offset voltage, and the functional $η(U)$ dependence.
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