Improved characteristics of ultraviolet AlGaN multiple-quantum-well laser diodes with step-graded quantum barriers close to waveguide layers
X Cai, S Li, J Kang - Superlattices and Microstructures, 2016 - Elsevier
Ultraviolet AlGaN multiple-quantum-well laser diodes (LDs) with step-graded quantum
barriers (QBs) instead of conventional first and last QBs close to waveguide layers are
proposed. The characteristics of this type of laser diodes are numerically investigated by
using the software PICS3D and it is found that the performances of these LDs are greatly
improved. The results indicates that the structure with step-graded QBs exhibits higher
output light power, slope efficiency and emission intensity, as well as lower series resistance …
barriers (QBs) instead of conventional first and last QBs close to waveguide layers are
proposed. The characteristics of this type of laser diodes are numerically investigated by
using the software PICS3D and it is found that the performances of these LDs are greatly
improved. The results indicates that the structure with step-graded QBs exhibits higher
output light power, slope efficiency and emission intensity, as well as lower series resistance …
以上显示的是最相近的搜索结果。 查看全部搜索结果