Self-formed InGaAs quantum dot lasers with multi-stacked dot layer

被引:38
作者
Shoji, H
Nakata, Y
Mukai, K
Sugiyama, Y
Sugawara, M
Yokoyama, N
Ishikawa, H
机构
[1] Fujitsu Lab Ltd, Atsugi, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1996年 / 35卷 / 7B期
关键词
semiconductor laser; quantum dot; self-formed dot; InGaAs; molecular beam epitaxy; Stranski-Krastanow growth;
D O I
10.1143/JJAP.35.L903
中图分类号
O59 [应用物理学];
学科分类号
摘要
Systematic investigation of lasing characteristics of self-formed InGaAs quantum dot lasers with multi-stacked dot layer is reported. We show that the lasing wavelength is strongly dependent on the number of quantum dot layers and the cavity length. Discontinuous shifts of the lasing wavelength from a high-order subband to a lower-order subband are clearly observed with increasing number of quantum dot layers and with decreasing cavity loss. The possibility of lasing at the ground state of quantum dots is also quantitatively discussed.
引用
收藏
页码:L903 / L905
页数:3
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