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Single-mode waveguides for GRAVITY
2018
Astronomy and Astrophysics
Context. Within the framework of the second-generation instrumentation of the Very Large Telescope Interferometer of the European Southern Observatory we have developed the four-telescope beam combiner in integrated optics. Aims. We optimized the performance of such beam combiners, for the first time in the near-infrared K band, for the GRAVITY instrument dedicated to the study of the close environment of the galactic centre black hole by precision narrow-angle astrometry and interferometric
doi:10.1051/0004-6361/201732544
fatcat:ukmlznjtevhfbhelxjejwcidga