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Proceedings Paper

Small-sized lithographic single-mode VCSELs with high-power conversion efficiency
Author(s): Xu Yang; Mingxin Li; Guowei Zhao; Yu Zhang; Sabine Freisem; Dennis Deppe
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Paper Abstract

Small, single mode VCSELs have been pursued almost since the inception of the device, but have been difficult to realize. Here we present data on lithographic and oxide-free VCSELs as small as 2 μm in diameter that produce single transverse mode powers of 8 mW and have high efficiency. The efficiencies reach 46% power conversion with greater than 73 % slope efficiency, with threshold current as low as 300 μA. Smaller VCSELs of 1 μm diameter produce 37 % power conversion efficiency with greater than 79 % slope efficiency, and single mode power over 5 mW. The keys to the high performance are the lithographic control and oxide elimination that reduce the electrical and thermal resistances.

Paper Details

Date Published: 4 March 2015
PDF: 6 pages
Proc. SPIE 9381, Vertical-Cavity Surface-Emitting Lasers XIX, 93810R (4 March 2015); doi: 10.1117/12.2079920
Show Author Affiliations
Xu Yang, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Mingxin Li, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Guowei Zhao, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Yu Zhang, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Sabine Freisem, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Dennis Deppe, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 9381:
Vertical-Cavity Surface-Emitting Lasers XIX
Chun Lei; Kent D. Choquette, Editor(s)

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