Spectral Dependence of the Linewidth Enhancement Factor in Quantum Dot Lasers

被引：1
|
作者：
Zubov, F. I. [1 ]
Shernyakov, Yu. M. [1 ,2 ]
Maximov, M. V. [1 ,2 ]
Zhukov, A. E. [1 ]
Livshits, D. A. [3 ]
Payusov, A. S. [2 ]
Nadtochiy, A. M. [2 ]
Savelyev, A. V. [1 ]
Kryzhanovskaya, N. V. [1 ]
Gordeev, N. Yu. [1 ,2 ]
机构：
[1] St Petersburg Acad Univ, Nanotechnol Res & Educ Ctr, Russian Acad Sci, St Petersburg 194021, Russia
[2] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[3] Innolume GmbH, D-44263 Dortmund, Germany
来源：
SEMICONDUCTORS | 2013年 / 47卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
1.3; MU-M; SEMICONDUCTOR-LASERS; FACTOR-ALPHA; M RANGE; GAIN;
D O I：
10.1134/S1063782613120233
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The spectral analysis of amplified spontaneous emission is used to determine the linewidth enhancement factor (alpha-factor) in lasers based on InAs/InGaAs quantum dots (QDs) in a wide spectral range near the ground-state optical transition energy. The effect of the pump current and number of QDs on the spectral dependences of the alpha-factor is examined. The temperature dependence of the spectra of the alpha-factor is experimentally determined for the first time for lasers with InAs/InGaAs QDs. An explanation is suggested for the observed anomalous decrease in the alpha-factor with increasing temperature.
引用
收藏
页码：1656 / 1660
页数：5
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