The Fizeau interferometer testbed (FIT): developing and testing the technologies needed for space-based interferometric imaging systems

Mazzuca, Lisa M.; Carpenter, Kenneth G.; Lyon, Richard G.; Marzouk, Joe; Petrone, Peter; Cottle, P.; Dogoda, Peter; Huet, Hubert; Liiva, Peter; Mozurkewich, David; Armstrong, J. T.; Zhang, Xiaolei; Solyar, Gregory; Mundy, Lee G.

doi:10.1117/12.550450

Cited by 2 publications

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“…FIT will be used to define of a set of baseline requirements for Stellar Imager by identifying and quantifying a variety of factors influencing system wavefront accuracy and stability. The ultimate goal of the testbed is to dynamically monitor and correct system wavefront through the closed-loop control of the seven FIT mirror elements [4,6].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of the Fizeau interferometer testbed

Petrone

Carpenter

Clark

et al. 2004

New Frontiers in Stellar Interferometry

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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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Section: Introductionmentioning

confidence: 99%