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Proceedings Paper

Optomechanical performance of 3D-printed mirrors with embedded cooling channels and substructures
Author(s): Joni Mici; Bradley Rothenberg; Erik Brisson; Sunny Wicks; David M. Stubbs
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Paper Abstract

Advances in 3D printing technology allow for the manufacture of topologically complex parts not otherwise feasible through conventional manufacturing methods. Maturing metal and ceramic 3D printing technologies are becoming more adept at printing complex shapes, enabling topologically intricate mirror substrates. One application area that can benefit from additive manufacturing is reflective optics used in high energy laser (HEL) systems that require materials with a low coefficient of thermal expansion (CTE), high specific stiffness, and (most importantly) high thermal conductivity to effectively dissipate heat from the optical surface. Currently, the limits of conventional manufacturing dictate the topology of HEL optics to be monolithic structures that rely on passive cooling mechanisms and high reflectivity coatings to withstand laser damage. 3D printing enables the manufacture of embedded cooling channels in metallic mirror substrates to allow for (1) active cooling and (2) tunable structures. This paper describes the engineering and analysis of an actively cooled composite optical structure to demonstrate the potential of 3D printing on the improvement of optomechanical systems.

Paper Details

Date Published: 2 September 2015
PDF: 14 pages
Proc. SPIE 9573, Optomechanical Engineering 2015, 957306 (2 September 2015); doi: 10.1117/12.2188533
Show Author Affiliations
Joni Mici, Lockheed Martin Space Systems Co. (United States)
Bradley Rothenberg, nTopology Inc. (United States)
Erik Brisson, nTopology Inc. (United States)
Sunny Wicks, Lockheed Martin Corp. Engineering Technology and Operations (United States)
David M. Stubbs, Lockheed Martin Space Systems Co. (United States)

Published in SPIE Proceedings Vol. 9573:
Optomechanical Engineering 2015
Alson E. Hatheway, Editor(s)

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