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Conferences > MICS > 2013 > MTh4B > MTh4B.1

Interband Cascade Lasers with External Differential Quantum Efficiency > 50% at Room Temperature

J. Abell, R. Weih, C. L. Canedy, M. Dallner, C. D. Merritt, W. W. Bewley, C. S. Kim, M. Kamp, S. Höfling, M. Kim, I. Vurgaftman, and J. R. Meyer

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Abstract

We report 7-stage thick-separate-confinement interband cascade lasers with emission at λ = 3.1–3.8 μm and pulsed external differential quantum efficiency up to 55% at room temperature, which corresponds to internal loss < 3 cm−1.

© 2013 Optical Society of America

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