Title :
Low divergence single mode edge emitting double metal Terahertz quantum cascade laser
Author :
Amanti, M.I. ; Fischer, M. ; Beck, M. ; Scalari, G. ; Faist, J.
Author_Institution :
Inst. for Quantum Electron., ETH Zurich, Zurich, Switzerland
Abstract :
We present the use of a third order distributed feedback waveguide for double metal THz quantum cascade laser as a successful design to obtain high slope efficiency of 50 mW/A, spectral emission control and narrow single lobed far field (5degtimes 8deg).
Keywords :
distributed feedback lasers; laser beams; laser modes; optical design techniques; quantum cascade lasers; spectral analysis; submillimetre wave lasers; waveguide lasers; Terahertz quantum cascade laser; distributed feedback waveguide; edge emitting double metal; low-divergence single mode; optical design technique; spectral emission control; Distributed feedback devices; Gratings; Laser beams; Laser modes; Optical waveguides; Power generation; Quantum cascade lasers; Surface emitting lasers; Temperature; Waveguide lasers; (140.3490) Lasers, distributed-feedback; (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
