摘要
分析了采用双面键合长波长面发射激光器时,键合界面光吸收系数和电、热导率的变化对器件的光、热性质的影响。对于1λ光学腔的面发射激光器,键合界面吸收系数对器件光学性能影响较大,而对于1.5λ光学腔的面发射激光器,其光学性能基本不受键合界面吸收系数的影响。由有限元方法对面发射激光器的温度分布计算结果可知,当键合界面电、热导率小于GaAs电、热导率的1%时,激光器有源层的温度会有较大的上升。
Influence of the fusion interface absorption coefficient, electrical and thermal conductivity on the optical and thermal characteristics has been investigated for the double-bonded long wavelength vertical surface-emitted lasers. Vertical laser with 1A optical cavity is sensitive to the absorption coefficient of fusion interface, while laser with 1.5A optical cavity is not sensitive. In conjunction with finite elements method, the temperature contour map of laser can be calculated. Results show that influence of interface on thermal characteristics should be considered only if the electrical and thermal conductivity is 1% times smaller than GaAs′s parameters.
出处
《红外与激光工程》
EI
CSCD
北大核心
2007年第6期798-801,共4页
Infrared and Laser Engineering
基金
国家重点基础研究发展规划资助项目(2003CB314902)
关键词
键合
面发射激光器
热导率
电导率
吸收系数
Bonding
Surface-emitting laser
Thermal conductivity
Electrical conductivity
Absorption coefficient
