Title :
EC tuning of a two color QCL active region design in the 3 to 4 μm region
Author :
Riedi, S. ; Bismuto, A. ; Hugi, A. ; Beck, M. ; Faist, J.
Author_Institution :
Inst. for Quantum Electron., ETH Zurich, Zurich, Switzerland
Abstract :
For the detection of multiple gas lines, high tuning ability of light sources in the entire mid-infrared is desirable. This requirement can be met by quantum cascade lasers with a broadband active region design operated in a grating-coupled external cavity setup. In order to optimize the mirror reflectivities for the set-up both the back and front laser facet are coated with a high-reflectivity and anti-reflectivity coating respectively.
Keywords :
antireflection coatings; laser cavity resonators; laser mirrors; laser tuning; quantum cascade lasers; reflectivity; EC tuning; anti-reflectivity coating; grating-coupled external cavity setup; high tuning ability; high-reflectivity coating; light sources; mirror reflectivities; multiple gas lines; quantum cascade lasers; two color QCL active region design; wavelength 3 mum to 4 mum; Broadband communication; Cavity resonators; Color; Laser tuning; Materials; Quantum cascade lasers;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6800680
