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  4. Blue lasing at room temperature in an optically pumped lattice-matched AlInN/GaN VCSEL structure
 
research article

Blue lasing at room temperature in an optically pumped lattice-matched AlInN/GaN VCSEL structure

Feltin, E.
•
Christmann, G.
•
Dorsaz, J.  
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2007
Electronics Letters

Laser action with low threshold average pump power density (similar to 50 W. cm(-2)) at room temperature is reported for a crack-free planar vertical cavity surface emitting laser (VCSEL) structure based on a bottom lattice-matched AllnN/GaN distributed Bragg reflector (DBR) and a top dielectric DBR. The cavity region, formed by n- and p-type GaN layers surrounding only three InGaN/GaN quantum wells, corresponds to a typical active region suitable for an electrically driven VCSEL. In addition to low threshold, a spontaneous emission coupling factor beta 2 x 10(-3) is derived for this ready-to-be-processed laser structure.

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Type
research article
DOI
10.1049/el:20071226
Web of Science ID

WOS:000249282200013

Author(s)
Feltin, E.
Christmann, G.
Dorsaz, J.  
Castiglia, A.  
Carlin, J. F.  
Butte, R.  
Grandjean, N.  
Christopoulos, S.
von Hogersthal, G. B. H.
Grundy, A. J. D.
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Date Issued

2007

Published in
Electronics Letters
Volume

43

Issue

17

Start page

924

End page

926

Subjects

DISTRIBUTED BRAGG REFLECTORS

•

SPONTANEOUS-EMISSION

•

LASER

•

MICROCAVITIES

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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LASPE  
Available on Infoscience
October 5, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/55073
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