VLTI Instrumentation

Operational Instruments:

  • MATISSE: 4-way beam combiner from L, M and N infrared bands.
  • GRAVITY: 4-way beam combiner in K band, with spectroscpic, frine tracking and astrometric capabilities.
  • PIONIER: The 4-way beam combiner in H band using the visitor focus of VLTI.

Decommissioned Instruments

  • AMBER: The Near-Infrared (J, H, K; 1-2.5 mm) 3-way beam combiner. Spectal resolution R=30 (low resolution), 1500 (medium r.), 12000 (high r.).
  • MIDI: The Mid-Infrared (8-13 mm) 2-way beam combiner Spectral resolution R=30 (prism), R=230 (grism).
  • PRIMA: The Instrument for Phase-Referenced Imaging and Microarcsecond Astrometry.
  • VINCI: The VLT Interferometer Commissioning Instrument.K-band.