High temperature operation of GaInAsSb/AlGaAsSb double-heterostructure lasers emitting near 2.1 μm

Abstract
Mesa‐stripe injection lasers have been prepared from liquid phase epitaxial Ga0.88In0.12As0.10Sb0.90/Al0.47Ga0.53 As0.04Sb0.96 double heterostructures having an active zone of n‐type conductivity. These laser diodes could operate pulsed at heatsink temperatures up to 120 °C, and showed high characteristic temperature near ambient (T0≊110 K), comparable with theoretical value.