Realization of GaAs/AlGaAs quantum-cascade lasers with high average optical power

被引:5
作者
Liu, JQ [1 ]
Liu, FQ [1 ]
Lu, XZ [1 ]
Guo, Y [1 ]
Wang, ZG [1 ]
机构
[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
关键词
X-ray diffraction; molecular beam epitaxy; semiconducting gallium compounds; quantum-cascade lasers (QCLs);
D O I
10.1016/j.sse.2005.09.005
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
Quasi-continuous-wave operation of GaAs/AlGaAs quantum-cascade lasers with high average optical power is demonstrated. Double X-ray diffraction has been used to investigate the quality of the epitaxial material. The compositional gradients and the interface quality are controlled effectively. The corrected average power of per facet about 17 mW and temperature tuning coefficient of the gain peak about 0.91 nm/K from 83 K to 140 K is achieved in pulse operation. Best value of threshold current density is less than 3.0 kA/cm(2) at 83 K. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1961 / 1964
页数:4
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