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Proceedings Paper

1.6-W cw coherent power from large-index-step (delta n=0.1) antiguided laser arrays
Author(s): Haiquan Yang; Jerry Lopez; Luke J. Mawst; Jerome Kent Wade; Thomas L. Earles; Dan Botez
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Paper Abstract

Near-resonant antiguided arrays with large effective-index step between element and interelement regions have been developed. 2.2 X diffraction-limited beamwidth (0.67 degrees) at 1.6 W and 9 X threshold in CW operation has been achieved. 1 W power resides in the central lobe. The external differential quantum efficiency and threshold current are 40% and 0.4 A, respectively, for 1 mm-long devices of 191 micrometer emitting aperture. The power conversion efficiency at 1.6 W is 23%. The thermal lensing effect in high-index-step near-resonant antiguided array hardly affects high-order modes and therefore, about 2 X diffraction-limited beam can be maintained to high powers.

Paper Details

Date Published: 1 April 1999
PDF: 9 pages
Proc. SPIE 3628, In-Plane Semiconductor Lasers III, (1 April 1999); doi: 10.1117/12.344518
Show Author Affiliations
Haiquan Yang, Univ. of Wisconsin/Madison (United States)
Jerry Lopez, Univ. of Wisconsin/Madison (United States)
Luke J. Mawst, Univ. of Wisconsin/Madison (United States)
Jerome Kent Wade, Univ. of Wisconsin/Madison (United States)
Thomas L. Earles, Univ. of Wisconsin/Madison (United States)
Dan Botez, Univ. of Wisconsin/Madison (United States)

Published in SPIE Proceedings Vol. 3628:
In-Plane Semiconductor Lasers III
Hong K. Choi; Peter S. Zory, Editor(s)

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