High-temperature continuous wave operation of strain-balanced quantum cascade lasers grown by metal organic vapor-phase epitaxy

被引:72
作者
Diehl, L. [1 ]
Bour, D.
Corzine, S.
Zhu, J.
Hofler, G.
Loncar, M.
Troccoli, M.
Capasso, Federico
机构
[1] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
[2] Agilent Lab, Palo Alto, CA 94304 USA
关键词
D O I
10.1063/1.2337284
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors report the fabrication of high-power strained quantum cascade lasers working in continuous mode above 370 K. The devices, processed in narrow buried heterostructures, were grown by low-pressure metal organic vapor-phase epitaxy. Continuous wave output power as high as 312 mW at 300 K was obtained at a wavelength of 5.29 mu m from a 3.25 mm long, 7.5 mu m wide laser with a high-reflectivity back facet coating. The slope efficiency was in excess of 1.5 W/A and the power conversion efficiency reached almost 5%.
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页数:3
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