Share Email Print

Proceedings Paper

Long-wavelength VCSELs with AlGaAsSb/AlAsSb Bragg mirrors lattice-matched on InP substrates
Author(s): Guilhem Almuneau; Eric M. Hall; Shigeru Nakagawa; Jin K. Kim; Larry A. Coldren
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The characterization of 1.55 micrometer room temperature (RT) electrically pumped monolithic vertical cavity surface emitting lasers (VCSELs) on InP is reported. By combining high refractive index-contrast AlGaAsSb/AlAsSb distributed Bragg mirrors (DBRs) and Esaki-junction-based active region, these results demonstrate that VCSELs operating at 1.55 micrometer and employing a reasonable number of mirror periods can be grown in a single epitaxial step. Regarding our first results with the same type of structure, some improvements have been achieved on the threshold current density (approximately equals 1 kA/cm2), and on the voltage drop in the DBRs. We also present in this paper the thermal conductivity of the As- Sb materials measured on both bulk layers and DBR stacks. The main performance-limiting factor appears to be the combination between the low thermal conduction of the quaternary alloys lattice-matched to InP, and the high energy-band offset between the high- and the low-index materials.

Paper Details

Date Published: 1 May 2000
PDF: 9 pages
Proc. SPIE 3946, Vertical-Cavity Surface-Emitting Lasers IV, (1 May 2000); doi: 10.1117/12.384360
Show Author Affiliations
Guilhem Almuneau, Univ. of California/Santa Barbara (United States)
Eric M. Hall, Univ. of California/Santa Barbara (United States)
Shigeru Nakagawa, Univ. of California/Santa Barbara (United States)
Jin K. Kim, Univ. of California/Santa Barbara (United States)
Larry A. Coldren, Univ. of California/Santa Barbara (United States)

Published in SPIE Proceedings Vol. 3946:
Vertical-Cavity Surface-Emitting Lasers IV
Kent D. Choquette; Chun Lei, Editor(s)

© SPIE. Terms of Use
Back to Top