Optical testbed for comparative analysis of wavefront sensors

Jonathan Andrews, Scott Teare, Sergio Restaino, Christopher Wilcox, David Wick, Hai Xiao, Jim Schwiegerling

Research output: Contribution to journalConference articlepeer-review

10 Scopus citations


An optical testbed has been developed for the comparative analysis of wavefront sensors based on a modified Mach Zender interferometer design. This system provides simultaneous measurements of the wavefront sensors on the same camera by using a common aberrator. The initial application for this testbed was to evaluate a Shack-Hartmann and Phase Diversity wavefront sensors referenced to a Mach-Zender interferometer. In the current configuration of the testbed, aberrations are controlled using a liquid crystal spatial light modulator, and corrected using a deformable mirror. This testbed has the added benefit of being able to train the deformable mirror against the spatial light modulator and evaluate its ability to compensate the spatial light modulator. In the paper we present results from the wavefront sensors in the optical testbed.

Original languageEnglish (US)
Article number589221
Pages (from-to)1-7
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2005
EventFree-Space Laser Communications V - San Diego, CA, United States
Duration: Jul 31 2005Aug 2 2005


  • Adaptive optics
  • Interferometry
  • Phase Diversity
  • Shack-Hartmann
  • Wavefront comparison
  • Wavefront correction
  • Wavefront sensing

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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