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Proceedings Paper

Silicon carbide optics for space and ground based astronomical telescopes
Author(s): Joseph Robichaud; Deepak Sampath; Chris Wainer; Jay Schwartz; Craig Peton; Steve Mix; Court Heller
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Paper Abstract

Silicon Carbide (SiC) optical materials are being applied widely for both space based and ground based optical telescopes. The material provides a superior weight to stiffness ratio, which is an important metric for the design and fabrication of lightweight space telescopes. The material also has superior thermal properties with a low coefficient of thermal expansion, and a high thermal conductivity. The thermal properties advantages are important for both space based and ground based systems, which typically need to operate under stressing thermal conditions. The paper will review L-3 Integrated Optical Systems – SSG’s (L-3 SSG) work in developing SiC optics and SiC optical systems for astronomical observing systems. L-3 SSG has been fielding SiC optical components and systems for over 25 years. Space systems described will emphasize the recently launched Long Range Reconnaissance Imager (LORRI) developed for JHU-APL and NASA-GSFC. Review of ground based applications of SiC will include supporting L-3 IOS-Brashear’s current contract to provide the 0.65 meter diameter, aspheric SiC secondary mirror for the Advanced Technology Solar Telescope (ATST).

Paper Details

Date Published: 13 September 2012
PDF: 8 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 845002 (13 September 2012); doi: 10.1117/12.926831
Show Author Affiliations
Joseph Robichaud, L-3 Integrated Optical Systems (United States)
Deepak Sampath, L-3 Integrated Optical Systems (United States)
Chris Wainer, L-3 Integrated Optical Systems (United States)
Jay Schwartz, L-3 Integrated Optical Systems (United States)
Craig Peton, L-3 Integrated Optical Systems (United States)
Steve Mix, L-3 Integrated Optical Systems (United States)
Court Heller, L-3 Integrated Optical Systems (United States)


Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)

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