Miniaturized Shack-Hartmann wavefront-sensors for ELTs

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

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

3 Citations (Scopus)


The miniaturization of wavefront sensors overcomes some of the potential barriers faced by ELTs in implementing large-scale multi-object adaptive optics over large focal surfaces. The Australian Astronomical Observatory is prototyping a compact and lightweight Shack-Hartmann wavefront-sensor designed to be positioned by their Starbug parallel fibre positioning robots. Starbugs perform the critical positioning of optical fibers for the MANIFEST instrument for the GMT. Each wavefront sensor uses a set of polymer bundles to relay the image produced by a microlens array near to the focal plane to a re-imaging module. This allows multiple wavefront sensors to be multiplexed to a single low-noise camera for cost efficiencies per wavefront sensor. The ability to have a large number of wavefronts sensors are likely increase the scientific impact of future ELTs. We illustrate our miniature wavefront sensor concept with a potential design for the GMT.

Original languageEnglish
Title of host publicationAdaptive Optics for Extremely Large Telescopes 4
Subtitle of host publicationConference Proceedings
Place of PublicationSanta Cruz, CA
PublisherUniversity of California Center for Adaptive Optics
Number of pages12
Publication statusPublished - 2015
Event4th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2015 - Lake Arrowhead, United States
Duration: 26 Oct 201530 Oct 2015


Other4th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2015
CountryUnited States
CityLake Arrowhead


  • Adaptive optics
  • GMT
  • Miniaturized
  • Shack-Hartmann
  • Starbugs
  • Wavefront-Sensors

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