High-temperature continuous wave operation of oxide-confined VCSELs

Semiconductor Science and Technology 2026 Open access

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Authors: Jack Baker, Craig Philip Allford, James Meiklejohn, Curtis Hentschel, Sara-Jayne Gillgrass, Samuel Shutts, Peter M Smowton
DOI: 10.1088/1361-6641/ae3e12
Cited by: 1
References: 33

Abstract

Abstract We present experimental measurements of the temperature dependence of oxide-confined vertical-cavity surface-emitting lasers under continuous wave (CW) operation and the aperture size-dependent performance at heatsink temperatures >135 ∘ C. We extract the maximum CW operating temperature and internal cavity temperature at turn off and show these to be higher for narrow aperture devices. The modal properties are assessed from below threshold to turn-off and we show a tendency to low order mode lasing throughout the current sweep for narrow aperture devices, influenced by strong optical and electrical confinement.

Fields of Study & Subjects

Semiconductor Lasers and Optical Devices Semiconductor Quantum Structures and Devices Solid State Laser Technologies

Publication details

Journal / source
Semiconductor Science and Technology
Publisher
IOP Publishing
Volume
41
Issue
2
Pages
025013–025013
Publication date
27 January 2026
Language
EN