High-performance GaInP/AlGaInP strained quantum well lasers grown by solid source molecular beam epitaxy

被引:9
作者
Toivonen, M
Savolainen, P
Pessa, M
机构
[1] Department of Physics, Tampere University of Technology, FIN-33101 Tampere
关键词
D O I
10.1088/0268-1242/11/12/026
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
High-performance visible (lambda approximate to 680 nm) GaxIn1-xP/(AlyGa1-y)(0.51)In0.49P compressively strained single quantum well laser diodes have been grown by solid source molecular beam epitaxy. The waveguide region was designed to have a low Al content in order to enhance the optical field confinement and to improve the material quality. The threshold current density for an infinity long cavity length was estimated to be 150 A cm(-2). The highest external quantum efficiency of 37% per facet was obtained for a cavity length of 480 mu m. A characteristic temperature of 130 K was measured in the temperature interval from 20 degrees G to 50 degrees C.
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页码:1923 / 1926
页数:4
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