InAs-based interband cascade lasers near 6 µm

Abstract

Broad-area interband cascade lasers have been demonstrated on an InAs substrate and at emission wavelengths near 6 µm 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/cm2 and 2.4 V, respectively, at 82 K.