Fabrication and characterization of the Fizeau interferometer testbed

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

doi:10.1117/12.552269

20 October 2004 Fabrication and characterization of the Fizeau interferometer testbed

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

Author Affiliations +

Proceedings Volume 5491, New Frontiers in Stellar Interferometry; (2004) https://doi.org/10.1117/12.552269
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

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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, and Gregory Solyar "Fabrication and characterization of the Fizeau interferometer testbed", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); https://doi.org/10.1117/12.552269

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