Abstract
Broad-area interband cascade lasers have been demonstrated on an InAs substrate and at emission wavelengths near 6 mum at temperatures up to 150 K in continuous-wave mode. The emission wavelengths are the longest achieved among III-V interband diode lasers. The threshold current density and voltage are about 50 A/cm 2 and 2.4 V, respectively, at 82 K.
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