垂直腔面发射激光器新型结构的特性比较

Characteristics comparison of a novel vertical-cavity surface-emitting laser

通过对一种微分量子效率可以大于 1的新型多有源区隧道再生应变量子阱垂直腔面发射半导体激光器 (VCSELs)结构 ,以及由此设计出的阈值电流更小、输出功率更大的器件与普通结构在反射率及注入电流都相同的条件下输出功率大小的比较及阈值电流密度大小的比较 ,从而在理论上证实了这种VCSELs新型结构的优势。

A novel multiple-active-region tunneling regenerated strained-quantum-well vertical-cavity surface-emitting laser(VCSEL),whose differential quantum efficiency is larger than unity and whose performance is expected to be improved,especially the threshold current is expected to be reduced and the output power is expected to be increased,was designed.Then the output power,threshold current of the novel structure and those of the traditional structure were compared under the conditions of the same reflectivity and injected current.So the advantages of the novel structure have been proved in theory.