Title :
Quantum Cascade Lasers with ultra-strong coupling injection
Author :
Liu, Peter Q. ; Hoffman, Anthony J. ; Escarra, Matthew D. ; Franz, Kale J. ; Khurgin, Jacob B. ; Dikmelik, Yamac ; Wang, Xiaojun ; Fan, Jen-Yu ; Gmachl, Claire F.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Abstract :
We demonstrate a Quantum Cascade Laser employing ultra-strong (~20 meV) coupling between the injector and the upper laser state. The laser shows a pulsed wall-plug efficiency of 34%(8%) and peak power of 8.0 W(2.0 W) at 80 K(300 K).
Keywords :
laser beams; optical design techniques; quantum cascade lasers; efficiency 34 percent; power 8 W; quantum cascade laser; temperature 80 K; ultrastrong coupling injection; upper laser state; wall-plug efficiency; Gold; Heat sinks; Laser transitions; Optical coupling; Optical design; Power lasers; Quantum cascade lasers; Semiconductor lasers; Threshold current; Waveguide lasers; (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
