Continuous operation of 1.0-μm-wavelength GaAs1−xSbx/AlyGa1−yAs1−xSbx double-heterostructure injection lasers at room temperature

Abstract
Double‐heterostructure GaAs1−xSbx/AlyGa1−yAs1−xSbx injection lasers have been operated continuously at room temperature for the first time. Emission was near 1.0 μm. The lowest threshold current density observed was 2.1 kA cm−2 dc.