Title :
Ultra-low voltage defect quantum cascade lasers
Author :
Escarra, Matthew D. ; Hoffman, Anthony J. ; Franz, Kale J. ; Howard, Scott S. ; Wang, Xiaojun ; Fan, Jen-Yu ; Gmachl, Claire
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Abstract :
We demonstrate a quantum cascade laser featuring a low-voltage-defect short injector. Devices showing a voltage-defect as low as 20 meV and voltage efficiency of 88% at 80 K are reported, with > 80% voltage efficiency at room temperature.
Keywords :
laser beams; optical fabrication; quantum cascade lasers; laser design; low-voltage-defect short injector; photon energy mismatch; temperature 293 K to 298 K; temperature 80 K; ultra-low voltage defect quantum cascade laser; wall-plug efficiency; Biomedical optical imaging; Infrared sensors; Low voltage; Optical design; Optical sensors; Quantum cascade lasers; Semiconductor lasers; Temperature sensors; Threshold current; Threshold voltage; (140.3070) Infrared and far-infrared lasers; (140.5965) Semiconductor lasers, quantum cascade;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
