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Authors: B. Demeulenaere, P. Bienstman, B. Dhoedt, R. Baets
Title: Detailed study of AlAs-oxidized apertures in VCSEL cavities for optimized modal performance
Format: International Journal
Publication date: 3/1999
Journal/Conference/Book: IEEE Journal of Quantum Electronics
Editor/Publisher: ISBN 0018-9197/99, 
Volume(Issue): 35(3) p.358-367
DOI: 10.1109/3.748841
Citations: 38 ( - last update: 14/7/2024)
26 (OpenCitations - last update: 26/4/2024)
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We present a numerical optical model for calculating threshold material gain in vertical-cavity surface-emitting lasers. It is based on a vectorial solution of Maxwell's equations and therefore gives exact results where other approaches fail, e.g., in the case of oxide-confined devices, which have high lateral index contrasts. Results are given concerning the influence of oxide window thickness and position on threshold gain and modal stability. We also propose an intuitive plane-wave model to enhance the physical understanding of these effects.

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