垂直腔表面发射激光器的小信号等效电路模型的研究

摘要

结合分析法和优化法,在ADS软件中对垂直腔体表面发射激光器(VCSEL)的小信号模型进行模型参数的提取,给出了具体的计算公式、参数提取数值及不同偏置电流下模拟结果和测量结果之间的误差,可以清楚的看出,这种提取参数的方法是十分高效的,可以使模拟结果和测量结果之间的误差相对于用单一的分析法提取出来的误差更小.%A parameter extraction method to determine the parameters of small signal equivalent circuit model of vertical cavity surface emitting lasers (VCSEL), which combines the analytical method and the optimization procedure, is introduced. The equations used for extraction and the extracted parameters of circuit elements under different bias points are presented. Good agreement is obtained between the simulated and measured results in the frequency range of 50MHz ～ 20GHz over a wide range of bias points.