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Proceedings Paper

Recent advances on CW current injection blue VCSELs
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Paper Abstract

The current injection GaN-based vertical cavity surface emitting lasers with hybrid mirrors have demonstrated the CW operation at room temperature. The laser hybrid cavity composes of a 29-pair high-reflectivity AlN/GaN bottom DBR, a 7-lamda cavity region, and a 10-pair SiO2/Ta2O5 dielectric DBR. The laser structure has utilized a thin ITO layer of 30 nm as the transparent conducting layer, combining with a thin heavily doped p-type InGaN contact layer to reduce the optical loss while maintaining good current spreading capability. The laser has typical emission wavelength around 412 nm with a threshold current of about 9.7 mA at room temperature. Further details of the laser design and performance characteristics are described.

Paper Details

Date Published: 7 February 2012
PDF: 6 pages
Proc. SPIE 8276, Vertical-Cavity Surface-Emitting Lasers XVI, 827607 (7 February 2012); doi: 10.1117/12.907056
Show Author Affiliations
Shing-Chung Wang, National Chiao Tung Univ. (Taiwan)
Tien-Chang Lu, National Chiao Tung Univ. (Taiwan)
Hao-Chung Kuo, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8276:
Vertical-Cavity Surface-Emitting Lasers XVI
Chun Lei; Kent D. Choquette, Editor(s)

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