'OHANA phase II: A prototype demonstrator of fiber linked interferometry between very large telescopes

G. Perrin, O. Lai, J. Woillez, J. Guerin, F. Reynaud, S. T. Ridgway, P. J. Léna, P. L. Wizinowich, A. T. Tokunaga, J. Nishikawa, F. J. Rigaut, A. J. Adamson, O. Guyon

Research output: Contribution to journalConference articlepeer-review

13 Scopus citations


The 'OHANA (Optical Hawaiian Array for Nanoradian Astronomy, means « family » in Hawaiian) aims at making a large and sensitive optical/IR array with the Mauna Kea 3 to 10 meter telescopes. Telescopes will be linked with single-mode fibers to carry the coherence of the beams from the output of the telescopes adaptive optics systems to the beam combination units. The project has been divided into three phases. The first phase is dedicated to the injection of light into single-mode fibers and to the building of the injection module. The third phase is the realization of the complete array and its use by a wide community of astronomers. In the second phase, a prototype 'OHANA will be built and the « shortest » baselines will be explored. The baselines will be located in the South-East and West parts of the observatory. An extra baseline will possibly link the two groups of telescopes if infrastructure comply with it. This phase II 'OHANA will already be the longest and most sensitive optical/IR interferometer built. Scientific targets will span young stellar objects, extragalactic sources and other types of astronomical topics which require both high angular resolution and sensitivity. This paper reviews the main characteristics of the phase II interferometer.

Original languageEnglish (US)
Pages (from-to)1290-1295
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue number2
StatePublished - 2002
EventInterferometry for Optical Astronomy II - Waikoloa, HI, United States
Duration: Aug 22 2002Aug 28 2002


  • Adaptive Optics
  • Interferometry
  • Singlemode fiber

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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