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Proceedings Paper

Design considerations for multi-fiber injection
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Paper Abstract

Applications requiring injection of a high-power multimode laser into multiple fibers with equal energies, or specific energy ratios, provide unique design challenges. As with most all systems, engineering trades must balance competing requirements to obtain an optimal overall design. This is particularly true when fabrication issues are considered in the design process. A few of these competing design requirements are discussed in this conceptually simple system. This fiber injection system consists of three components; a refractive beam homogenizer, a diffractive beamsplitter, and a fiber array. We show the design process, starting with first-order design, for an example fiber injection system that couples a high-power YAG laser into seven fibers. Design goals include high efficiency, good beamsplitting uniformity, compact overall size, maximum mode filling of the fibers, and low cost of fabrication and assembly.

Paper Details

Date Published: 18 August 2005
PDF: 12 pages
Proc. SPIE 5871, Optical Technologies for Arming, Safing, Fuzing, and Firing, 587106 (18 August 2005); doi: 10.1117/12.619552
Show Author Affiliations
D. M. Brown, Optosensors Technology, Inc. (United States)
F. M. Dickey, Sandia National Labs. (United States)
W. J. Thomes Jr., Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 5871:
Optical Technologies for Arming, Safing, Fuzing, and Firing
William J. Thomes Jr.; Fred M. Dickey, Editor(s)

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