Thermal performance of 940 nm AlGaAs-Based VCSELs grown on germanium

Baker, J., Allford, C. P. ORCID: https://orcid.org/0000-0002-3798-9014, Gillgrass, S., Davies, J. I., Shutts, S. ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, P. M. ORCID: https://orcid.org/0000-0002-9105-4842 2025. Thermal performance of 940 nm AlGaAs-Based VCSELs grown on germanium. IEEE Photonics Journal 10.1109/jphot.2025.3552951

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Abstract

VCSEL thermal resistances are determined from power-current-voltage-wavelength measurements performed on nominally identical epitaxial structures grown on Ge and GaAs substrates. We show that the effective thermal conductivity of the VCSEL is increased when grown on Ge substrates.

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Schools > Physics and Astronomy
Additional Information:	License information from Publisher: LICENSE 1: URL: https://creativecommons.org/licenses/by/4.0/legalcode, Start Date: 2025-01-01
Publisher:	Institute of Electrical and Electronics Engineers
ISSN:	1943-0655
Date of First Compliant Deposit:	2 April 2025
Last Modified:	02 Apr 2025 10:00
URI:	https://orca.cardiff.ac.uk/id/eprint/177342

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