Design Considerations for the Second-Generation NPOI Fringe Tracker and Science Beam Combiner
NAVAL RESEARCH LAB WASHINGTON DC REMOTE SENSING DIV
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We describe the motivations for and the conceptual design of the second-generation back-end beam combiner and fringe tracker for the Navy Prototype Optical Interferometer. The new back end is expected to result in much-improved data quality and sensitivity compared to the existing back end. It will also enable the observation of geostationary satellites in the visible and near infrared regions of the spectrum.