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Proceedings Paper

Cryogenic tunable near-infrared Fabry Perot interferometer for Next Generation Space Telescope
Author(s): Charles Lim Yee; Lawrence Lesyna; Kenneth R. Lorell; Jean-Noel Aubrun; Pat Champagne; Neal Didriksen; Victor Nikolaskin; Roger Mihara; Robert R. Clappier; Ramji Digumarthi
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Paper Abstract

An engineering test unit Fabry-Perot interferometer has been designed and built to operate in the 1.5-1.7 um regime from room temperature to 30 K°. The Fabry-Perot interferometer is tuned by controlling the gap spacing between the two highly reflecting mirrors. Capacitance sensors are used to control the gap spacing and maintain parallelism of the mirrors. An overview of the optical, mechanical, electrical, and control designs of the instrument are described. Some early results at cryogenic temperature indicative of the performance of the instruments are presented.

Paper Details

Date Published: 25 November 2002
PDF: 11 pages
Proc. SPIE 4822, Cryogenic Optical Systems and Instruments IX, (25 November 2002); doi: 10.1117/12.452332
Show Author Affiliations
Charles Lim Yee, Lockheed Martin Advanced Technology Ctr. (United States)
Lawrence Lesyna, Private Consultant (United States)
Kenneth R. Lorell, Private Consultant (United States)
Jean-Noel Aubrun, Marjan Research (United States)
Pat Champagne, Lockheed Martin Advanced Technology Ctr. (United States)
Neal Didriksen, Lockheed Martin Advanced Technology Ctr. (United States)
Victor Nikolaskin, Lockheed Martin Advanced Technology Ctr. (United States)
Roger Mihara, Lockheed Martin Advanced Technology Ctr. (United States)
Robert R. Clappier, Clappier Consulting (United States)
Ramji Digumarthi, Lockheed Martin Advanced Technology Ctr. (United States)


Published in SPIE Proceedings Vol. 4822:
Cryogenic Optical Systems and Instruments IX
James B. Heaney; Lawrence G. Burriesci, Editor(s)

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