Single-mode vertical-cavity surface-emitting laser with ring-shaped light-emitting aperture

In this letter, we demonstrate a single-mode vertical-cavity surface-emitting laser (VCSEL) with a ring-shaped light-emitting aperture, which is realized by the Zn diffusion technique, at a wavelength of 850nm. Relative to the control VCSEL with an ordinary circular aperture and the same geometry an...

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Bibliographic Details
Published in:Applied physics letters 2005-07, Vol.87 (3)
Main Authors: Shi, Jin-Wei, Jiang, C.-H., Chen, K.-M., Yen, J.-L., Yang, Ying-Jay
Format: Article
Language:English
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Summary:In this letter, we demonstrate a single-mode vertical-cavity surface-emitting laser (VCSEL) with a ring-shaped light-emitting aperture, which is realized by the Zn diffusion technique, at a wavelength of 850nm. Relative to the control VCSEL with an ordinary circular aperture and the same geometry and size, the demonstrated device can suppress the higher-order transverse mode more effectively without affecting the threshold current and output power. Compared with typical reported single-mode VCSELs, a larger light-emitting aperture and current-confined area with a smaller divergence angle of the output beam, and lower differential resistance are achieved with the present structure.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1997282