Prevention of gain saturation by multi-layer quantum dot lasers

被引:104
作者
Schmidt, OG [1 ]
Kirstaedter, N [1 ]
Ledentsov, NN [1 ]
Mao, MH [1 ]
Bimberg, D [1 ]
Ustinov, VM [1 ]
Egorov, AY [1 ]
Zhukov, AE [1 ]
Maximov, MV [1 ]
Kopev, PS [1 ]
Alferov, ZI [1 ]
机构
[1] AF IOFFE PHYS TECH INST,ST PETERSBURG 194021,RUSSIA
关键词
semiconductor quantum dots; semiconductor junction lasers;
D O I
10.1049/el:19960851
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
The authors compare the threshold current density j(th) against the laser length of a single layer quantum dot (SLQD) laser with a sixfold multilayer quantum dot (MLQD) laser. Gain saturation is not observed in the MLQD laser. They calculate j(th) against the number of dot layers including gain saturation. The strong impact of thermal coupling of carriers on j(th) is demonstrated.
引用
收藏
页码:1302 / 1304
页数:3
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