Title :
Broadband distributed feedback quantum cascade laser array using a heterogeneous cascade
Author :
Diehl, Laurent ; Lee, B.G. ; Zhang, H.A. ; Pflügl, Christian ; Belkin, M. ; Fisher, M. ; Wittman, A. ; Faist, J. ; Capasso, Federico
Author_Institution :
Sch. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA, USA
Abstract :
We demonstrated an array of distributed feedback quantum cascade lasers covering a spectral range of 220 cm-1. The variability in threshold current and slope efficiency is explained in terms of the position of the laser end facets.
Keywords :
distributed feedback lasers; laser beams; quantum cascade lasers; semiconductor laser arrays; spectral analysis; broadband distributed feedback laser; heterogeneous cascade; laser end facet; quantum cascade laser array; Distributed feedback devices; Frequency; Gratings; Laser feedback; Laser modes; Laser tuning; Mirrors; Optical arrays; Quantum cascade lasers; Surface emitting lasers; (140.5965) Semiconductor lasers, quantum cascade; OCIS Codes;
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
