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Proceedings Paper

Fabrication and characterization of the Fizeau interferometer testbed
Author(s): Peter Petrone III; Kenneth G. Carpenter; Dave Clark; Paul Cottle; Peter Dogoda; Hubert Huet; Peter Liiva; Richard G. Lyon; Joe Marzouk; Lisa M. Mazzuca; Dave McAndrew; Gregory Solyar
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Paper Abstract

The Fizeau Interferometer Testbed (FIT) is a ground-based system that will be used for the development and testing of technologies relevant to Stellar Imager (SI) and other sparse aperture/Fizeau imaging interferometer mission concepts. The testbed will utilize image-based wavefront sensing and control to co-phase and maintain closed-loop control over a Sparse Aperture Array (SAA) consisting of spherical mirror elements. The SAA is a re-configurable assembly baselined to incorporate between seven (initially) and thirty 12.5mm diameter (R = 4000mm) mirror elements. In this paper we describe the fabrication, alignment, and initial calibration of the phase I (7 primary elements) FIT hardware and discuss various factors impacting the performance and stability of the testbed.

Paper Details

Date Published: 20 October 2004
PDF: 14 pages
Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.552269
Show Author Affiliations
Peter Petrone III, Sigma Space Corp. (United States)
Kenneth G. Carpenter, NASA Goddard Space Flight Ctr. (United States)
Dave Clark, NASA Goddard Space Flight Ctr. (United States)
Paul Cottle, Sigma Space Corp. (United States)
Peter Dogoda, Sigma Space Corp. (United States)
Hubert Huet, Sigma Space Corp. (United States)
Peter Liiva, Sigma Space Corp. (United States)
Richard G. Lyon, NASA Goddard Space Flight Ctr. (United States)
Joe Marzouk, Sigma Space Corp. (United States)
Lisa M. Mazzuca, NASA Goddard Space Flight Ctr. (United States)
Dave McAndrew, Mink Hollow Systems, Inc. (United States)
Gregory Solyar, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 5491:
New Frontiers in Stellar Interferometry
Wesley A. Traub, Editor(s)

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