Optical performance of the GHOST fiber cable

Ross Zhelem, Vladimir Churilov, Scott Case, Yuriy Kondrat, Kristin Fiegert, Lewis Waller, Jon Lawrence, Tony Farrell, Michael Ireland

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


The Gemini High-resolution Optical SpecTrograph (GHOST) is fed by an optical cable linking the telescope and environmentally stabilized spectrograph room. Telescope input is injected into integral field units that are translated along the focal surface by positioners. Each integral field unit serves as an image slicer partitioning the seeing limited image with the help of a hexagonal microlens array. An additional microlens array is used to inject light telecentrically into each fiber which maximizes the efficiency of the cable. Spectral measurements of the optical cable throughput are presented for the design wavelength range.

Original languageEnglish
Title of host publicationAdvances in Optical Astronomical Instrumentation 2019
EditorsSimon Ellis, Céline d'Orgeville
Place of PublicationBellingham, Washington
Number of pages2
ISBN (Electronic)9781510631472
ISBN (Print)9781510631465
Publication statusPublished - 3 Jan 2020
EventAdvances in Optical Astronomical Instrumentation 2019 - Melbourne, Australia
Duration: 9 Dec 201912 Dec 2019

Publication series

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


ConferenceAdvances in Optical Astronomical Instrumentation 2019


  • Fiber cable
  • High-resolution spectroscopy
  • Integral field unit
  • Microlens image slicer

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