Miniaturized Shack-Hartmann wavefront sensors for starbugs

Michael Goodwin, Samuel Richards, Jessica Zheng, Jon Lawrence, Sergio Leon-Saval, Alexander Argyros, Belen Alcalde

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

7 Citations (Scopus)


The ability to position multiple miniaturized wavefront sensors precisely over large focal surfaces are advantageous to multi-object adaptive optics. The Australian Astronomical Observatory (AAO) has prototyped a compact and lightweight Shack-Hartmann wavefront-sensor that fits into a standard Starbug parallel fibre positioning robot. Each device makes use of a polymer coherent fibre imaging bundle to relay an image produced by a microlens array placed at the telescope focal plane to a re-imaging camera mounted elsewhere. The advantages of the polymer fibre bundle are its high-fill factor, high-throughput, low weight, and relatively low cost. Multiple devices can also be multiplexed to a single lownoise camera for cost efficiencies per wavefront sensor. The use of fibre bundles also opens the possibility of applications such as telescope field acquisition, guiding, and seeing monitors to be positioned by Starbugs. We present the design aspects, simulations and laboratory test results.

Original languageEnglish
Title of host publicationAdvances in optical and mechanical technologies for telescopes and instrumentation
EditorsRamón Navarro, Colin R. Cunningham, Allison A. Barto
Place of PublicationBellingham, Washington
Number of pages20
ISBN (Electronic)9780819496195
Publication statusPublished - 2014
EventAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation - Montreal, Canada
Duration: 23 Jun 201427 Jun 2014

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


OtherAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation


  • Adaptive Optics
  • Miniaturized
  • Shack-Hartmann
  • Starbugs
  • Wavefront-Sensors

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