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

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 wa...

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Bibliographic Details
Published in:Applied physics letters 2006-08, Vol.89 (8), p.081101-081101-3
Main Authors: Diehl, L., Bour, D., Corzine, S., Zhu, J., Höfler, G., Lončar, M., Troccoli, M., Capasso, Federico
Format: Article
Language:English
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Summary: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 μ m from a 3.25 mm long, 7.5 μ 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%.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2337284