Applied Physics Letters · 1995 · 80 citations · 0 references
EngineeringElectrical EngineeringMaterials ScienceElectronic MaterialsOptoelectronicsPhotonicsIii-v SemiconductorsLaser DiodesLaser PhysicsQuantum OptoelectronicsQuantum Well DevicesSemiconductor LasersDifferential EfficiencyDifferential Quantum EfficiencyMaximum OutputMaximum Power OutputPower OutputQuantum EfficiencyQuantum Well LasersQuantum Well Structures
We describe room-temperature 2.78 μm AlGaAsSb/InGaAsSb multiquantum well lasers. Pulsed laser operation was observed at 15 °C with a threshold current of 1.1 A (10 kA/cm2), and a maximum power output of 30 mW, and a maximum differential quantum efficiency of 9%. Lasers operated pulsed up to 60 °C with a characteristic temperature of 58 K over the range of 0–40 °C. To date, 2.78 μm is the longest emission wavelength for a room-temperature III–V laser.