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Proceedings Paper

Numerical modeling of long-wavelength vertical-cavity surface-emitting semiconductor lasers. I. Continuous-wave modeling
Author(s): A. Tsigopoulos; V. Paschos; Paul Salet; Joel Jacquet
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Paper Abstract

Long-wavelength vertical-cavity surface-emitting semiconductor lasers are investigated and heating effects on the light vs. current characteristics of VCSELs are analyzed by thermal-electric, optical, and electronic modeling. The model includes nonuniform current injection, carrier diffusion, stimulated emission, distributed heat sources, and active material band structure calculations. Device parameters such as threshold current, and external quantum efficiency are evaluated. Simulated power vs. current characteristics exhibit the typical thermal roll-over in continuous wave operation. The model is applied to two specific optimized underetched structure designs in order to provide an understanding of the current-funneling mechanism and the thermal limitations of such devices.

Paper Details

Date Published: 14 July 1998
PDF: 6 pages
Proc. SPIE 3423, Second GR-I International Conference on New Laser Technologies and Applications, (14 July 1998); doi: 10.1117/12.316558
Show Author Affiliations
A. Tsigopoulos, Univ. of Athens (Greece)
V. Paschos, Univ. of Athens (Greece)
Paul Salet, Alcatel-Alsthom Recherche (France)
Joel Jacquet, Alcatel-Alsthom Recherche (France)

Published in SPIE Proceedings Vol. 3423:
Second GR-I International Conference on New Laser Technologies and Applications
Alexis Carabelas; Paolo Di Lazzaro; Amalia Torre; Giuseppe Baldacchini, Editor(s)

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