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High-temperature 4.5-μm type-II quantum-well laser with Auger suppression

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7 Author(s)
Felix, C.L. ; Naval Res. Lab., Washington, DC, USA ; Meyer, J.R. ; Vurgaftman, I. ; Lin, C.-H.
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Laser emission at 4.2-4.5 μm has been observed at temperatures up to 310 K in pulsed optical pumping experiments on type-II quantum-well (QW) lasers with four constituents in each period (InAs-Ga/sub 1-x/In/sub x/Sb-InAs-AlSb). The characteristic temperature, T0, is 41 K, and a peak output power exceeding 2 W/facet is observed at 200 K. The power conversion efficiency per facet of /spl ap/0.2% up to 200 K is within a factor of 2 of the theoretical value. The 300 K Auger coefficient of 4×10/sup -27/ cm6/s extracted from the threshold pump intensity demonstrates that Auger losses have been suppressed by a factor of four.

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Photonics Technology Letters, IEEE  (Volume:9 ,  Issue: 6 )