Title :
Reduced threshold and high temperature operation in single-mode ring cavity surface emitting quantum cascade lasers
Author :
E. Mujagic;C. Schwarzer;M. Nobile;H. Detz;S. Ahn;W. Schrenk;J. Chen;C. Gmachl;G. Strasser
Author_Institution :
Institute for Solid State Electronics, TU Vienna, 1040, Austria
Abstract :
Reduced threshold currents and high temperature operation in surface emitting quantum cascade lasers are demonstrated by using ring-based cavities. The devices exhibit robust and tunable single-mode operation as well as low divergence symmetric beams.
Keywords :
"Quantum cascade lasers","Temperature","Surface emitting lasers","Optical surface waves","Ring lasers","Stimulated emission","Gold","Gratings","Threshold current","Optical resonators"
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
