Multi-core fibre-fed integral-field unit (MCIFU): Overview and first-light

Sebastiaan Y. Haffert*, Robert J. Harris, Alessio Zanutta, Fraser A. Pike, Andrea Bianco, Edoardo Redaelli, Aurélien Benoît, David G. MacLachlan, Calum A. Ross, Itandehui Gris-Sánchez, Mareike D. Trappen, Yilin Xu, Matthias Blaicher, Pascal Maier, Giulio Riva, Baptiste Sinquin, Caroline Kulcsár, Nazim Ali Bharmal, Eric Gendron, Lazar StaykovTim J. Morris, Santiago Barboza, Norbert Muench, Lisa Bardour, Léonard Prengère, Henri François Raynaud, Philip Hottinger, Theodoros Anagnos, James Osborn, Christian Koos, Robert R. Thompson, Tim A. Birks, Ignas A. G. Snellen, Christoph U. Keller, Laird Close, Jared R. Males

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)
98 Downloads (Pure)


The Multi-Core Integral-Field Unit (MCIFU) is a new diffraction-limited near-infrared integral-field unit for exoplanet atmosphere characterization with extreme adaptive optics (xAO) instruments. It has been developed as an experimental pathfinder for spectroscopic upgrades for SPHERE+/VLT and other xAO systems. The wavelength range covers 1.0 um to 1.6um at a resolving power around 5000 for 73 points on-sky. The MCIFU uses novel astrophotonic components to make this very compact and robust spectrograph. We performed the first successful on-sky test with CANARY at the 4.2 meter William Herschel Telescope in July 2019, where observed standard stars and several stellar binaries. An improved version of the MCIFU will be used with MagAO-X, the new extreme adaptive optics system at the 6.5 meter Magellan Clay telescope in Chile. We will show and discuss the first-light performance and operations of the MCIFU at CANARY and discuss the integration of the MCIFU with MagAO-X.

Original languageEnglish
Title of host publicationAdaptive Optics Systems VII
EditorsLaura Schreiber, Dirk Schmidt, Elise Vernet
ISBN (Electronic)9781510636842
ISBN (Print)9781510636835
Publication statusPublished - 13 Dec 2020
EventSPIE Astronomical Telescopes + Instrumentation 2020 - Virtual, Online, United States
Duration: 14 Dec 202022 Dec 2020

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceSPIE Astronomical Telescopes + Instrumentation 2020
Country/TerritoryUnited States
CityVirtual, Online


  • 3d printing
  • Astrophotonics
  • Atmospheres
  • Exoplanets
  • Extreme adaptive optics
  • High-resolution spectroscopy
  • Multi-core fibre
  • Near-infrared

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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