Title :
Limitations to the power output and efficiency of mid-Infrared quantum cascade lasers imposed by transport
Author :
Dikmelik, Yamac ; Khurgin, Jacob B. ; Liu, Peter Q. ; Escarra, Matthew D. ; Hoffman, Anthony J. ; Franz, Kale J. ; Gmachl, Claire F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
We use a density-matrix framework to evaluate the wallplug efficiency of mid-infrared quantum cascade lasers. We assess the limitations to maximum current and internal efficiency, imposed by injection coupling and current leakage, respectively.
Keywords :
leakage currents; quantum cascade lasers; transport processes; current leakage; density-matrix framework; injection coupling; internal efficiency; maximum current; midinfrared quantum cascade laser; wallplug efficiency; Current density; Laser modes; Laser transitions; Optical coupling; Optical scattering; Particle scattering; Quantum cascade lasers; Quantum computing; Semiconductor lasers; Tunneling;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
