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Proceedings Paper

Record-brightness laser-diode bars for fiber coupling
Author(s): M. Dogan; R. Pathak; S. Ellison; H. Eppich; G. Campbell; J. Vignati; J. H. Jacob; K. D. Lang; R. H. Chin; M. T. Knapczyk; W. Sun; S. F. Fulghum; A. K. Chin
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Paper Abstract

High brightness, laser-diode bars are required for efficient coupling into small-core optical-fibers. Record power and brightness results were achieved using 20% fill-factor, 980nm, 1cm-wide, 4mm cavity-length bars. Lifetimes of single bars, operated CW at 200W and 20°C, exceed 1000hr. Due to superb thermal management, the power conversion efficiency (PCE) exceeds 60% at 200W output power. Similar lifetime and PCE were obtained for a 3-bar stack emitting 600W output power.

Paper Details

Date Published: 9 February 2012
PDF: 7 pages
Proc. SPIE 8241, High-Power Diode Laser Technology and Applications X, 82410G (9 February 2012); doi: 10.1117/12.908673
Show Author Affiliations
M. Dogan, Science Research Lab., Inc. (United States)
R. Pathak, Coherent, Inc. (United States)
S. Ellison, Advanced Reseach Corp. (United States)
H. Eppich, Science Research Lab., Inc. (United States)
G. Campbell, Science Research Lab., Inc. (United States)
J. Vignati, Science Research Lab., Inc. (United States)
J. H. Jacob, Science Research Lab., Inc. (United States)
K. D. Lang, Science Research Lab., Inc. (United States)
R. H. Chin, Science Research Lab., Inc. (United States)
M. T. Knapczyk, Science Research Lab., Inc. (United States)
W. Sun, Science Research Lab., Inc. (United States)
S. F. Fulghum, Science Research Lab., Inc. (United States)
A. K. Chin, Somerville Laser Technology, LLC (United States)


Published in SPIE Proceedings Vol. 8241:
High-Power Diode Laser Technology and Applications X
Mark S. Zediker, Editor(s)

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