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Proceedings Paper

100-W 105-um 0.15NA fiber coupled laser diode module
Author(s): Scott R. Karlsen; R. Kirk Price; Mitch Reynolds; Aaron Brown; Ron Mehl; Steve Patterson; Robert J. Martinsen
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Paper Abstract

We report on the development of a high brightness laser diode module capable of coupling over 100W of optical power into a 105 μm 0.15 NA fiber at 976 nm. This module, based on nLIGHT's Pearl product architecture, utilizes hard soldered single emitters packaged into a compact and passively-cooled package. In this system each diode is individually collimated in the fast and slow axes and free-space coupled into a single fiber. The high brightness module has an optical excitation under 0.13 NA, is virtually free of cladding modes, and has an electrical to optical efficiency greater than 40%. Additionally, this module is compatible with high power 7:1 fused fiber combiners, and initial experiments demonstrated 500W coupled into a 220 μm, 0.22 NA fiber. These modules address the need in the market for higher brightness diode lasers for pumping fiber lasers and direct material processing.

Paper Details

Date Published: 23 February 2009
PDF: 8 pages
Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 71980T (23 February 2009); doi: 10.1117/12.809710
Show Author Affiliations
Scott R. Karlsen, nLight Corp. (United States)
R. Kirk Price, nLight Corp. (United States)
Mitch Reynolds, nLight Corp. (United States)
Aaron Brown, nLight Corp. (United States)
Ron Mehl, nLight Corp. (United States)
Steve Patterson, nLight Corp. (United States)
Robert J. Martinsen, nLight Corp. (United States)

Published in SPIE Proceedings Vol. 7198:
High-Power Diode Laser Technology and Applications VII
Mark S. Zediker, Editor(s)

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