Title :
Terahertz quantum cascade lasers with symmetric active regions
Author :
Deutsch, C. ; Detz, H. ; Zederbauer, T. ; Andrews, A.M. ; Schrenk, W. ; Benz, A. ; Strasser, G. ; Unterrainer, K.
Author_Institution :
Photonics Inst., Vienna Univ. of Technol., Vienna, Austria
Abstract :
We present terahertz quantum cascade lasers based on symmetric active regions. Polarity dependent performance differences are observed in the GaAs/AlGaAs and the InGaAs/GaAsSb system. The growth-induced asymmetries and their influence are discussed.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; microwave photonics; quantum cascade lasers; terahertz wave devices; GaAs-AlGaAs; InGaAs-GaAsSb; growth-induced asymmetries; polarity dependent performance; symmetric active regions; terahertz quantum cascade lasers; Gallium arsenide; Indium gallium arsenide; Performance evaluation; Quantum cascade lasers; Scattering;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
