Title :
Photonic heterostructures: A new concept for high power surface emission in THz quantum cascade lasers
Author :
Xu, Gangyi ; Strupiechonski, Elodie ; Sevin, Gregoire ; Colombelli, Raffaele ; Belarouci, Ali ; Letartre, Xavier ; Khanna, Suraj P. ; Li, Lianhe ; Linfield, Edmund H. ; Davies, A. Giles
Author_Institution :
Inst. d´´Electron. Fondamentale, Univ. Paris Sud, Orsay, France
Abstract :
We report high-power-efficiency, surface-emitting, single-mode terahertz quantum cascade (QC) lasers with a photonic heterostructure resonator. This concept allows one to selectively excite an unusual resonance mode exhibiting a symmetric transverse electromagnetic field distribution and therefore high radiation efficiency.
Keywords :
quantum cascade lasers; surface emitting lasers; THz quantum cascade lasers; high power surface emission; high radiation efficiency; high-power-efficiency surface-emitting lasers; photonic heterostructure resonator; resonance mode; single-mode terahertz quantum cascade lasers; symmetric transverse electromagnetic field distribution; Educational institutions; Photonics;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943703
