Integrated optics for astronomical interferometry. IV. First measurements of stars

Details Integrated optics for astronomical interferometry. IV. First measurements of stars Integrated optics for astronomical interferometry. IV. First measurements of stars

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...376l..31b&link_type=abstract

Astronomy and Astrophysics, v.376, p.L31-L34 (2001)

Physics

Optics

46

Interferometry, Integrated Optics, Instrumentation

Scientific paper

We present in this paper the astronomical validation of a new approach to interferometric starlight combination. Using integrated optics technologies developed by the telecommunication industry, we have implemented optical circuits on coin-size chips that combine two beams and provide simultaneous photometric calibration signals. We report the first interferometric observations of stars using such beam combiners at the Infrared Optical Telescope Array (IOTA). This result opens the way to a new generation of miniaturized, high performance, and reliable instruments, dedicated to interferometric aperture synthesis.

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