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High-performance, aluminum-free optically-pumped mid-IR semiconductor lasers

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6 Author(s)
A. K. Goyal ; Lincoln Lab., MIT, Lexington, MA, USA ; G. W. Turner ; M. J. Manfra ; P. J. Foti
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We demonstrate that it is possible to create a mid-infrared laser structure which is free of aluminum by using GaSb as the optical cladding material in an integrated absorber laser structure. Based on previously published data at shorter wavelengths, the refractive index of the InGaAsSb used in the IA QW laser structures is extrapolated to be higher than that of GaSb This index step is an order of magnitude smaller than when using the more conventional AlAsSb as the optical cladding

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Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE  (Volume:1 )

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