Development of Infrared Phase Closure Capability in the Infrared-Optical Telescope Array (IOTA)

Details Development of Infrared Phase Closure Capability in the Infrared-Optical Telescope Array (IOTA) Development of Infrared Phase Closure Capability in the Infrared-Optical Telescope Array (IOTA)

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002stin...0231250t&link_type=abstract

Technical Report, Smithsonian Astrophysical Observatory Cambridge, MA United States

Astronomy and Astrophysics

Astrophysics

Fabrication, Infrared Telescopes, Control Systems Design, Optical Paths

Scientific paper

We completed all major fabrication and testing for the third telescope and phase-closure operation at the Infrared-Optical Telescope Array (IOTA) during this period. In particular we successfully tested the phase-closure operation, using a laboratory light source illuminating the full delay-line optical paths, and using an integrated-optic beam combiner coupled to our Picnic-detector camera. This demonstration is an important and near-final milestone achievement. As of this writing, however, several tasks yet remain, owing to development snags and weather, so the final proof of success, phase-closure observation of a star, is now expected to occur in early 2002, soon after this report has been submitted.

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