摘要
采用光增益与载流子浓度的对数关系,考虑到非辐射复合的影响,从理论上推导出多量子阱垂直腔面发射半导体激光器(VCSEL)的速率方程。讨论了阈值电流密度、最佳阱数与器件参数(腔长和端面反射率)之间的关系,为改善VCSEL阈值特性和优化器件结构提供了理论依据。
Based on the logarithmic relation of gain on carrier density, the rate equations are described for multi-quantum well of vertical cavity surface emitting lasers (VCSELs) taking into account the influence of nonradiative depopulation rate. The relation of device parameter(cavity length and the reflect coefficient of mirror) on threshold current and quantum well numbers are discussed. It will provide theoretical basis for improvement of threshold property optimization of device construction.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2007年第5期651-654,共4页
Semiconductor Optoelectronics
基金
国家科技攻关项目(00-068)