Continuous Wave Quantum Cascade Lasers With Reduced Number of Stages

Pedro Figueiredo,Matthew Suttinger,Rowel Go,Ankesh Todi,Hong Shu,Eugene Tsvid,C. Kumar N. Patel,A. Lyakh

IEEE Photonics Technology Letters（2017）

引用 14|浏览6

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摘要

Experimental data for 15-stage 5.6-μm quantum cascade lasers based on Al0.78In0.22As/In0.69Ga0.31As active region composition are presented. Pulsed slope efficiency, threshold current density, and wall-plug efficiency for a 2.1 mm × 10.4 μm device with a high reflection-coated back facet were measured to be 1.45 W/A, 3.1 kA/cm2, and 18%, respectively. Corresponding continuous wave values for the s...

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关键词

Quantum cascade lasers,Threshold current,Current measurement,Resistance,Pulse measurements,Density measurement,III-V semiconductor materials

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