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Proceedings Paper

Reaction bonded silicon carbide gimbaled pointing mirror
Author(s): J. Robichaud; A. Akerstrom; S. Frey; D. Crompton; P. Cucchiaro; G. Deveau; M. Peters; S. Mason; C. Ullathorne
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Paper Abstract

A Silicon Carbide (SiC) based wide field of view Pointing Mirror Assembly (PMA) has been developed to provide two axis line-of-sight control for a fixed, space based imaging sensor. Thermal modeling has been completed in order to project the excellent thermal stability anticipated from the SiC PMA, and closed loop servo testing of the hardware has been conducted in order to quantify the bandwidth associated with line-of-sight control. In addition to the system level testing the SiC mirror substrate itself has been tested for thermal stability. We also report on results obtained with a novel polishing technique which has been applied in order to allow optical finishing of the two-phased Reaction Bonded (RB) SiC mirror substrate without the need for Silicon or SiC claddings.

Paper Details

Date Published: 17 September 2007
PDF: 9 pages
Proc. SPIE 6666, Optical Materials and Structures Technologies III, 66660O (17 September 2007); doi: 10.1117/12.732590
Show Author Affiliations
J. Robichaud, L-3 Communications SSG-Tinsley, Inc. (United States)
A. Akerstrom, L-3 Communications SSG-Tinsley, Inc. (United States)
S. Frey, L-3 Communications SSG-Tinsley, Inc. (United States)
D. Crompton, L-3 Communications SSG-Tinsley, Inc. (United States)
P. Cucchiaro, L-3 Communications SSG-Tinsley, Inc. (United States)
G. Deveau, L-3 Communications SSG-Tinsley, Inc. (United States)
M. Peters, L-3 Communications SSG-Tinsley, Inc. (United States)
S. Mason, L-3 Communications SSG-Tinsley, Inc. (United States)
C. Ullathorne, L-3 Communications SSG-Tinsley, Inc. (United States)


Published in SPIE Proceedings Vol. 6666:
Optical Materials and Structures Technologies III
William A. Goodman; Joseph L. Robichaud, Editor(s)

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