Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Laboratory characterization of a Foucault-like wavefront sensor for adaptive optics

[+] Author Affiliations
Armando Riccardi, N. Bindi, Simone Esposito, Paolo Stefanini

Osservatorio Astrofisico di Arcetri (Italy)

Roberto Ragazzoni

Osservatorio Astronomico di Padova (Italy)

Proc. SPIE 3353, Adaptive Optical System Technologies, 941 (September 11, 1998); doi:10.1117/12.321702
Text Size: A A A
From Conference Volume 3353

  • Adaptive Optical System Technologies
  • Domenico Bonaccini; Robert K. Tyson
  • Kona, HI | March 20, 1998

abstract

We present a prototype of a Foucault-Like Wavefront Sensor (FLWS) that will be implemented in the Adaptive Optics Systems of 3.5m TNG and is of the proposed choices for the 2 X 8.4m LBT. The FLWS has some interesting features for Adaptive Optics applications: it has a linear relationship between measured signals and wavefront derivatives like the Shack-Hartmann sensor, it allows to change on the fly the gain used for wavefront measurements like the Curvature Sensor, and finally it allow to modify easily the wavefront aberration spatial sampling. The developed prototype of the FLWS is described and first laboratory results are presented. Measurements of static wavefront aberrations performed by the FLWS and a Wyko interferometer are compared to test the accuracy of the sensor, giving an error of a few tens of nm in terms of reconstructed wavefront rms, when aberrations of typical atmospheric turbulence strength are induced.

© (1998) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Armando Riccardi ; N. Bindi ; Roberto Ragazzoni ; Simone Esposito and Paolo Stefanini
"Laboratory characterization of a Foucault-like wavefront sensor for adaptive optics", Proc. SPIE 3353, Adaptive Optical System Technologies, 941 (September 11, 1998); doi:10.1117/12.321702; http://dx.doi.org/10.1117/12.321702


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.