DocumentCode :
846826
Title :
Room temperature operation of ultra-short quantum cascade lasers with deeply etched Bragg mirrors
Author :
Höfling, S. ; Seufert, J. ; Reithmaier, J.P. ; Forchel, A.
Author_Institution :
Univ. Wurzburg, Germany
Volume :
41
Issue :
12
fYear :
2005
fDate :
6/9/2005 12:00:00 AM
Firstpage :
704
Lastpage :
705
Abstract :
Mid-infrared GaAs based bound-to-continuum quantum cascade microlasers with ridge waveguide geometry are fabricated by the monolithic integration of deeply etched semiconductor-air Bragg mirrors. Devices with ultra-short cavities of 50 and 150 μm can be operated near room temperature (260 K) or at room temperature (300 K), respectively. 50 μm-long devices show singlemode emission up to relatively high drive currents due to the large mode spacing of about 30 cm-1 (340 nm).
Keywords :
Bragg gratings; III-V semiconductors; gallium arsenide; mirrors; quantum cascade lasers; ridge waveguides; 150 micron; 260 K; 300 K; 50 micron; GaAs; air Bragg mirrors; bound-to-continuum quantum cascade microlasers; deeply etched Bragg mirrors; deeply etched semiconductor; monolithic integration; ridge waveguide geometry; room temperature operation; singlemode emission; ultra-short cavities; ultra-short quantum cascade lasers;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:20051145
Filename :
1441122
Link To Document :
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