Size effects in small oxide confined vertical-cavity surface-emitting lasers
- 18 November 1996
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 69 (21) , 3152-3154
- https://doi.org/10.1063/1.116812
Abstract
Data are presented on small area vertical-cavity surface-emitting lasers with lateral sizes ranging from 5 to 1 μm that use both oxide confinement and a high-contrast distributed Bragg reflector as the upper mirror. Optical loss becomes appreciable for device sizes less than 3 μm in diameter, and is analyzed through measurements of threshold, differential output efficiency, and the far-field radiation patterns. The results suggest that loss of optical confinement occurs for thin apertures and small device sizes.Keywords
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