Title :
Low voltage defect heterogeneous quantum cascade laser
Author :
Hoffman, Anthony J. ; Schartner, Stephan ; Howard, Scott S. ; Franz, Kale J. ; Towner, Fred ; Gmachl, Claire
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ
Abstract :
We demonstrate a quantum cascade laser employing two different injector regions and matched 4.6 mum optical transitions for low-voltage-defect operation. The laser has a pulsed wall-plug efficiency of 19% at 80 K and operates pulsed at 300 K.
Keywords :
electro-optical effects; laser beams; laser transitions; quantum cascade lasers; efficiency 19 percent; heterogeneous quantum cascade laser operation; injector regions; low-voltage-defect operation; matched optical transitions; pulsed wall-plug efficiency; temperature 300 K; temperature 80 K; Gold; Heat sinks; Laser transitions; Low voltage; Optical design; Optical pulses; Quantum cascade lasers; Semiconductor lasers; Temperature; Waveguide lasers; (140.3070) Infrared and far-infrared lasers; (140.5965) Semiconductor lasers, quantum cascade;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
