Cavity parameters of ZnCdSe/ZnSe single-quantum-well separate-confinement-heterostructure laser diodes

被引:0
作者
Tsujimura, Ayumu [1 ]
Yoshii, Shigeo [1 ]
Hayashi, Shigeo [1 ]
Ohkawa, Kazuhiro [1 ]
Mitsuya, Tsuneo [1 ]
机构
[1] Matsushita Electric Ind. Co Ltd, Osaka, Japan
来源
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 1993年 / 32卷 / 12 A期
关键词
Heterojunctions - Optical properties - Quantum electronics - Semiconducting zinc compounds - Semiconductor diodes;
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摘要
The cavity length dependence of the external differential quantum efficiency and the threshold current density was investigated for ZnCdSe/ZnSe single-quantum-well separate-confinement-heterostructure laser diodes at 77 K. An internal loss of 1.5 cm-1, and internal quantum efficiency of 61% for stimulated emission, a transparency current density of 1.8 kA/(cm2 μm) and a gain factor of 0.36 cm2 μm/A were obtained. The transparency current density is 3-4 times larger than that for bulk GaAs. Improvement in the internal quantum efficiency for spontaneous emission will lead to reduction of the operation current.
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页码:1750 / 1752
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