GaAs/AlGaAs distributed feedback quantum cascade lasers

Authors
Schrenk, W Finger, N Gianordoli, S Hvozdara, L Strasser, G Gornik, E
Citation
W. Schrenk et al., GaAs/AlGaAs distributed feedback quantum cascade lasers, APPL PHYS L, 76(3), 2000, pp. 253-255
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
76
Issue
3
Year of publication
2000
Pages
253 - 255
Database
ISI
SICI code
0003-6951(20000117)76:3<253:GDFQCL>2.0.ZU;2-9
Abstract
We report on the realization of distributed feedback quantum cascade lasers in the GaAs/AlGaAs material system. A metallized surface relief grating is used for feedback. Both single mode and double mode emission is observed a t lambda approximate to 10 mu m. The coupling coefficient is measured from the mode spacing for double mode emission to be 24 cm(-1). The emission wav e number can be tuned with the temperature at a rate of d nu/dT approximate to 0.048 cm(-1)/K. (C) 2000 American Institute of Physics. [S0003-6951(00) 03103-X].