Title :
EC tuning of broadband QCL active region designs around 3.3 μm and 8 μm
Author :
Riedi, S. ; Bismuto, A. ; Hugi, A. ; Blaser, Sebastian ; Beck, M. ; Faist, J.
Author_Institution :
Inst. of Quantum Electron., ETH Zurich, Zurich, Switzerland
Abstract :
Broadband-Quantum-Cascade-Lasers in the 3.3 μm and the 8 μm regions were tuned over 277 cm-1 and 445 cm-1 respectively using a grating-tuned external cavity set-up. The junction-up mounted devices were HR and AR coated and operated in pulsed mode. Another device of the 8 μm design was operated in cw and yielded a tuning range of 247 cm-1 without AR coating.
Keywords :
antireflection coatings; diffraction gratings; laser tuning; quantum cascade lasers; EC tuning; HR coating; antireflectivity coatings; broadband QCL active region; broadband-quantum-cascade-lasers; grating-tuned external cavity set-up; junction-up mounted devices; pulsed mode; Broadband communication; Cavity resonators; Coatings; Materials; Quantum cascade lasers; Tuning;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
