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Proceedings Paper

Optical optimization of microcavity VCSELs
Author(s): Michael J. Noble; John P. Loehr; James A. Lott
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Paper Abstract

We present a full vector, finite element analysis of oxide apertured VCSELs, focusing on the optical properties required for low threshold design. We examine several versions of an 870 nm oxide DBR, oxide aperture VCSEL design to gain insight into the physical processes determining diffractive loss. Our results suggest the diffraction may be modeled as a coupling loss to the parasitic mode continuum. In this approach, the loss is determined from two competing factors: (1) the lasing mode penetration into the radial cladding region, and (2) the relative alignment of the eignenmode and parasitic mode wavevectors. We also find the characteristic blueshift resulting from the transverse optical confinement.

Paper Details

Date Published: 20 April 1998
PDF: 10 pages
Proc. SPIE 3286, Vertical-Cavity Surface-Emitting Lasers II, (20 April 1998); doi: 10.1117/12.305464
Show Author Affiliations
Michael J. Noble, Air Force Institute of Technology (United States)
John P. Loehr, Air Force Research Lab. (United States)
James A. Lott, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 3286:
Vertical-Cavity Surface-Emitting Lasers II
Kent D. Choquette; Robert A. Morgan, Editor(s)

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