基于Python的半导体激光二极管仿真技术研究

Research on Simulation Technology of Semiconductor Laser Diode Based on Python

摘要:

基于Python语言,编写具有UI界面的半导体激光二极管(LD)仿真EDA程序,该程序可以设置LD芯片有源区的材料组分,分析材料参数并计算波导折射率,绘制折射率分布曲线和光强分布曲线,计算芯片的有源区的能带结构及增益特性并绘制在不同载流子浓度下的光增益谱曲线。通过该EDA程序,对791nm波长的半导体激光二极管芯片进行了仿真,参考仿真结果制作了发光区条宽为190μm,腔长为4mm的芯片,15A电流下其峰值功率达16.25W。

Abstract:

Based on Python language, a semiconductor laser diode simulation EDA program with UI interface was written. The program could set the material composition of the active area of the semiconductor laser diode chip, analyze the material parameters and calculate the waveguide refractive index, draw the refractive index distribution curve and the light intensity distribution curve, calculate the energy band structure and gain characteristics of the active area of the chip, and draw the optical gain spectrum curve under different carrier concentrations. Using the EDA program, the semiconductor laser diode chip with 791nm wavelength was simulated. The chip with light-emitting region width of 190μm and cavity length of 4mm was fabricated and it has a peak power of 16.25W at 15A current.