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Proceedings Paper

Pyramidal wavefront sensor using diffractive lenses
Author(s): Manuel P. Cagigal; José E. Oti; Miguel A. Cagigas; Pedro J. Valle
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Paper Abstract

A new technique for high resolution wavefront sensing has been introduced. It is based on the Optical Differentiation wavefront sensor, however its application has required the development of a diffractive element that provides four or five copies of the original wavefront. It some aspect the result is similar to that provide by the Pyramid sensor although from a theoretical point of view is more close to the Modified Hartmann sensor. Here we introduce the theoretical background and principles along with an example of phase derivative estimate based on a computer simulation. The technique looks very promising since it is simple, with high resolution, without moving parts and allows us an easy post processing to recover Zernike coefficients. Nevertheless, a lot of work has to be completed to a proper evaluation of its actual capabilities, noise, resolution, etc.

Paper Details

Date Published: 13 September 2012
PDF: 6 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84476I (13 September 2012); doi: 10.1117/12.925336
Show Author Affiliations
Manuel P. Cagigal, Univ. de Cantabria (Spain)
José E. Oti, Univ. de Cantabria (Spain)
Miguel A. Cagigas, Univ. de Cantabria (Spain)
Pedro J. Valle, Univ. de Cantabria (Spain)

Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)

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