Title :
Quantum cascade lasers of λ ≈ 14µm based on three-phonon-resonance design
Author :
Bo Meng ; Qijie Wang
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We report the design and demonstration of ~14 μm quantum cascade lasers based on the three-phonon-resonance active region design. The as-cleaved device with 40 periods of active region and size of 3.8 mm×28μm shows ~10 mW peak power at 280 K and maximum working temperature of 295 K. Due to the Stark effect, the laser wavelength blue-shifts from 13.75 to 13.4 μm for temperature changing from 200 K to 295 K at around roll-over current density, with characteristics temperature of 440 K.
Keywords :
Stark effect; current density; laser beams; phonons; quantum cascade lasers; spectral line shift; Stark effect; characteristics temperature; laser wavelength blue-shifts; quantum cascade lasers; roll-over current density; temperature 280 K; temperature 295 K; temperature 440 K; three-phonon-resonance active region design; working temperature; Doping; Fabrication; Heat pumps; Laser excitation; Pump lasers; Quantum cascade lasers; Space heating; Stark effect; mid-infrared; quantum cascade lasers;
Conference_Titel :
Photonics Global Conference (PGC), 2012
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2513-4
DOI :
10.1109/PGC.2012.6457975
