垂直腔面发射激光器电、光特性分析  

Analysis of Electrical and Optical-field Distribution Characteristics in Vertical-cavity Surface Emitting Lasers

作　　者：刘立新[1] 赵红东[1] 高铁成[1] 李娜[1] 辛国锋[1] 曹萌[1] 

机构地区：[1]河北工业大学信息工程学院,天津300130

出　　处：《光子学报》2003年第5期517-519,共3页Acta Photonica Sinica

基　　金：河北省自然科学基金 ( 60 2 0 74);河北省教育厅博士基金资助项目

摘　　要：根据增益波导垂直腔面发射激光器 (VCSELs)直接耦合的准三维理论模型 ,通过有限差分法对泊松方程、注入电流密度、载流子浓度和光场分布方程求自洽解 ,研究了垂直腔面发射激光器的电特性和光波导特性 计算结果表明 ,氧化限制层位置是影响激光器特性的主要因素之一 ,如果忽略N型DBR层的影响 。A direct coupling theoretical model in quasi-three-dimension for the gain-wave guide Vertical-Cavity Surface-Emitting Lasers (VCSELs) has been created.With the finite-difference method, self-consistent solutions for the Possion, injected current density, carrier concentration and optical field equations have been realized to study the electrical and optical-field characteristics of VCSELs. The calculated results show that the position of the oxide-confined layer is one of the main influential factors on the characteristics of lasers, and if the N-type DBR layers were neglected, there would be a large difference from practical VCSELs.

关 键 词：垂直腔面发射激光器 电特性 光特性 VCSELS 准三维理论模型 有限差分法 氧化限制层位置 DBR 布喇格反射镜 

分 类 号：TN248[电子电信—物理电子学]