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Proceedings Paper

Capacitance and modulation time constant in oxide-confined vertical-cavity surface-emitting lasers with different oxide layers
Author(s): Michał Wasiak; Patrycja Śpiewak; Philip Moser; James A. Lott
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Paper Abstract

In this paper we analyze the influence of the thickness of two oxide layers in a typical oxide-confined vertical-cavity surface-emitting laser (VCSEL) on the capacitance of the device and its electrical modulation properties. An analysis of the distribution of the potential and the energy of the electric field in this device is presented, and the influence of these fields on the laser's capacitance is described. It is shown that the oxide layer closest to the active region contributes in a very different way to the laser's capacitance compared to the second slightly more distant oxide layer, and a quantitative analysis of the impact of the thicknesses of these layers on the modulation time constants is presented.

Paper Details

Date Published: 28 April 2016
PDF: 7 pages
Proc. SPIE 9892, Semiconductor Lasers and Laser Dynamics VII, 989211 (28 April 2016); doi: 10.1117/12.2230312
Show Author Affiliations
Michał Wasiak, Lodz Univ. of Technology (Poland)
Patrycja Śpiewak, Lodz Univ. of Technology (Poland)
Philip Moser, Technische Univ. Berlin (Germany)
James A. Lott, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 9892:
Semiconductor Lasers and Laser Dynamics VII
Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik, Editor(s)

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