Modeling of resistance characteristics of a continuously-graded distributed Bragg reflector in a 980-nm vertical-cavity surface-emitting laser

The resistance characteristics of a continuously-graded distributed Bragg reflector（DBR） in a 980-nm verticalcavity surface-emitting laser（VCSEL） are modeled in detail.The junction resistances between the layers of both the p-and n-DBR mirrors are analysed by combining the thermionic emission model...

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Bibliographic Details
Published in:Chinese physics B 2012-10, Vol.21 (10), p.283-289, Article 104207
Main Author: 黄梦 吴坚 崔怀洋 钱建强 宁永强
Format: Article
Language:English
Subjects:
Bragg reflectors
Design engineering
Finite difference method
Mathematical analysis
Mathematical models
Reflectors
Thermionic emission
VCSEL
Vertical cavity surface emission lasers
分布布拉格反射器
分布布拉格反射镜
垂直腔表面发射激光器
建模
梯度
电阻特性
阻抗计算
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Summary:The resistance characteristics of a continuously-graded distributed Bragg reflector（DBR） in a 980-nm verticalcavity surface-emitting laser（VCSEL） are modeled in detail.The junction resistances between the layers of both the p-and n-DBR mirrors are analysed by combining the thermionic emission model and the finite difference method.In the meantime,the intrinsic resistance of the DBR material system is calculated to make a comparison with the junction resistance.The minimal values of series resistances of the graded p-and n-type DBR mirrors and the lateral temperature-dependent resistance variation are calculated and discussed.The result indicates the potential to optimize the design of the DBR reflectors of the 980-nm VCSELs.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/10/104207