Applied Physics Letters · 2007 · 137 citations · 10 references
EngineeringElectrical EngineeringElectronic MaterialsOptoelectronicsPhotonicsIntegrated OpticsLaser DiodesPhotonic Integrated CircuitsSemiconductor HeterostructuresSemiconductor LasersWaveguidesHeterostructure DevicesHeterostructure LasersHigh-power Semiconductor LasersPower OutputQuantum Cascade LasersRidge WaveguidesThermal Management In Semiconductor LasersWaveguide Design
The authors report on the development of λ∼4.7μm strain-balanced InP-based quantum cascade lasers with high wall plug efficiency and room temperature continuous-wave operation. The use of narrow-ridge buried heterostructure waveguides and thermally optimized packaging is presented. Over 9.3% wall plug efficiency is reported at room temperature from a single device producing over 0.675W of continuous-wave output power. Wall plug efficiencies greater than 18% are also reported for devices at a temperature of 150K, with continuous-wave output powers of more than 1W.
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Jérôme Faist, Federico Capasso, Deborah L. Sivco et al. · Science · 1994 · 4.5K citations
Continuous-wave operation of λ∼4.8μm quantum-cascade lasersat room temperature
A. Evans, Jae Su Yu, S. Slivken et al. · Applied Physics Letters · 2004 · 130 citations