Title :
Directional single mode QCL emission using metal grating second order coupler at room temperature
Author :
Maisons, G. ; Carras, M. ; Garcia, M. ; Simozrag, B. ; Marcadet, X.
Author_Institution :
III-V Lab., Mid-Far InfraRed Emitters, Alcatel Thales, Palaiseau, France
Abstract :
Low beam divergence (2.1°*4°) substrate emission from a quantum cascade laser is demonstrated with top metal grating at room temperature. An index coupled, distributed feedback laser with a SMSR of 30dB is coupled to a monolithic extraction area.
Keywords :
diffraction gratings; distributed feedback lasers; optical couplers; quantum cascade lasers; directional single mode quantum cascade laser emission; distributed feedback laser; low beam divergence substrate emission; metal grating second order coupler; Couplers; Distributed feedback devices; Gratings; Laser feedback; Metals; Quantum cascade lasers; Surface emitting lasers; Surface emission; low divergence; quantum cascade laser; top metal grating;
Conference_Titel :
Semiconductor Laser Conference (ISLC), 2010 22nd IEEE International
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-5683-3
DOI :
10.1109/ISLC.2010.5642755
