Interferometric coupling of the Keck telescopes with single-mode fibers

Details Interferometric coupling of the Keck telescopes with single-mode fibers Interferometric coupling of the Keck telescopes with single-mode fibers

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sci...311..194p&link_type=abstract

Science, Vol. 311, p. 194

Physics

Optics

13

Interferometry, Single-Mode Fibers, Keck Telescopes, 'Ohana

Scientific paper

We report the successful interferometric coupling of two large telescopes using single-mode fibers. Interference fringes were obtained in the 2-2.3 micron wavelength range on the star 107 Herculis with the two Keck 10-m telescopes, each feeding their common interferometric focus with 300 m of single-mode fibers. The beams collected by the two telescopes were corrected with adaptive optics to restore the spatial coherence of light over the large pupils. This first step of the 'OHANA project demonstrates the potential of fibers to efficiently guide beams and preserve their coherence for future kilometric arrays of telescopes.

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