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Proceedings Paper

KOALA, a wide-field 1000 element integral-field unit for the Anglo-Australian Telescope: assembly and commissioning
Author(s): Ross Zhelem; Jurek Brzeski; Scott Case; Vladimir Churilov; Simon Ellis; Tony Farrell; Andrew Green; Anthony Heng; Anthony Horton; Michael Ireland; Damien Jones; Urs Klauser; Jon Lawrence; Stan Miziarski; David Orr; Naveen Pai; Nick Staszak; Julia Tims; Minh Vuong; Lew Waller; Pascal Xavier
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Paper Abstract

The KOALA optical fibre feed for the AAOmega spectrograph has been commissioned at the Anglo-Australian Telescope. The instrument samples the reimaged telescope focal plane at two scales: 1.23 arcsec and 0.70 arcsec per image slicing hexagonal lenslet over a 49x27 and 28x15 arcsec field of view respectively. The integral field unit consists of 2D hexagonal and circular lenslet arrays coupling light into 1000 fibres with 100 micron core diameter. The fibre run is over 35m long connecting the telescope Cassegrain focus with the bench mounted spectrograph room where all fibres are reformatted into a one-dimensional slit. Design and assembly of the KOALA components, engineering challenges encountered, and commissioning results are discussed.

Paper Details

Date Published: 8 July 2014
PDF: 9 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91473K (8 July 2014); doi: 10.1117/12.2055588
Show Author Affiliations
Ross Zhelem, Australian Astronomical Observatory (Australia)
Jurek Brzeski, Australian Astronomical Observatory (Australia)
Scott Case, Australian Astronomical Observatory (Australia)
Vladimir Churilov, Australian Astronomical Observatory (Australia)
Simon Ellis, Australian Astronomical Observatory (Australia)
Tony Farrell, Australian Astronomical Observatory (Australia)
Andrew Green, Australian Astronomical Observatory (Australia)
Anthony Heng, Australian Astronomical Observatory (Australia)
Anthony Horton, Australian Astronomical Observatory (Australia)
Michael Ireland, Mount Stromlo Observatory (Australia)
Damien Jones, Prime Optics (Australia)
Urs Klauser, Australian Astronomical Observatory (Australia)
Jon Lawrence, Australian Astronomical Observatory (Australia)
Stan Miziarski, Australian Astronomical Observatory (Australia)
David Orr, Australian Astronomical Observatory (Australia)
Naveen Pai, Australian Astronomical Observatory (Australia)
Nick Staszak, Australian Astronomical Observatory (Australia)
Julia Tims, Australian Astronomical Observatory (Australia)
Minh Vuong, Australian Astronomical Observatory (Australia)
Lew Waller, Australian Astronomical Observatory (Australia)
Pascal Xavier, Australian Astronomical Observatory (Australia)


Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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