The MROI fringe tracker: first fringe experiment

Details The MROI fringe tracker: first fringe experiment The MROI fringe tracker: first fringe experiment

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7734e.132j&link_type=abstract

Optical and Infrared Interferometry II. Edited by Danchi, William C.; Delplancke, Françoise; Rajagopal, Jayadev K. Proceeding

Physics

Scientific paper

The MROI fringe tracking beam combiner will be the first fringe instrument for the interferometer. It was designed to utilize the array geometry and maximize sensitivity to drive the interferometer for faint source imaging. Two primary concerns have driven the design philosophy: 1) maintaining high throughput and visibilities in broadband polarized light, and 2) mechanical stability. The first concern was addressed through tight fabrication tolerances of the combiner substrates, and custom coatings. In order to optimize mechanical stability, a unique modular design approach was taken that minimizes the number of internal adjustments. This paper reports initial laboratory fringe and stability measurements.

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