Recent advances on CW current injection blue VCSELs

Shing-Chung Wang; Tien-Chang Lu; Hao-Chung Kuo

doi:10.1117/12.907056

7 February 2012 Recent advances on CW current injection blue VCSELs

Shing-Chung Wang, Tien-Chang Lu, Hao-Chung Kuo

Proceedings Volume 8276, Vertical-Cavity Surface-Emitting Lasers XVI; 827607 (2012) https://doi.org/10.1117/12.907056
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

Shing-Chung Wang, Tien-Chang Lu, and Hao-Chung Kuo "Recent advances on CW current injection blue VCSELs", Proc. SPIE 8276, Vertical-Cavity Surface-Emitting Lasers XVI, 827607 (7 February 2012); https://doi.org/10.1117/12.907056

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