Vertical external cavity surface emitting PbTe/CdTe quantum dot lasers for the mid-infrared spectral region

被引：9
|
作者：
Khiar, A. [1 ]
Eibelhuber, M. [1 ]
Volobuev, V. [1 ,2 ]
Witzan, M. [1 ]
Hochreiner, A. [1 ]
Groiss, H. [1 ]
Springholz, G. [1 ]
机构：
[1] Univ Linz, Inst Semicond & Solid State Phys, A-4040 Linz, Austria
[2] Natl Tech Univ, Kharkiv Polytech Inst, UA-61002 Kharkov, Ukraine
来源：
OPTICS LETTERS | 2014年 / 39卷 / 23期
基金：
奥地利科学基金会;
关键词：
D O I：
10.1364/OL.39.006577
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Optically pumped vertical external cavity surface emitting lasers (VECSELS) emitting in the mid-infrared range are demonstrated with an active structure based on PbTe quantum dots (QDs) embedded in CdTe. In contrast to Stranski- Krastanov QDs, the PbTe QDs are fabricated by a strain-free synthesis method consisting of a molecular beam epitaxy growth step followed by a post-growth-annealing step. The laser emission of the VECSELs covers a wavelength range between 3.5 and 4.3 mu m by changing the temperature from 85 to 240 K. The threshold power is lower than 100 mW(P) and the output power is more than 50 mW(P) at low temperature. (C) 2014 Optical Society of America
引用
收藏
页码：6577 / 6580
页数：4
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