Optimization of Bragg reflectors in AlGaAs/GaAs VCSELs

✍ Scribed by V. M. N. Passaro; F. Magno; F. De Leonardis

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 202 KB
• Volume: 2
• Category: Article
• ISSN: 1612-2011
• DOI: 10.1002/lapl.200410179

✦ Synopsis

In this paper a detailed investigation of the
distributed Bragg reflectors in GaAs-based vertical cavity surface
emitting lasers is presented. The influence of layer doping
concentration, number of periods, oxide aperture and
Al~x~Ga~1-x~As alloy composition on output emission power
and threshold current has been found. Both oxidized and non
oxidized structures have been considered. A number of
interpolation curves are extracted and presented for design and
fabrication purposes. Although the results are presented for
GaAs-based structures, the theoretical approach is very general.