Conference Paper

Real time phase compensation using a tomographical pupil image wavefront sensor (TPI-WFS)

  • J. J. Fernández-Valdivia /
  • J. M. Trujillo-Sevilla /
  • O. Casanova-González /
  • R. L. López /
  • S. Velasco /
  • C. Colodro-Conde /
  • M. Puga /
  • A. Oscoz /
  • R. Rebolo /
  • C. Mackay /
  • A. Pérez-Garrido /
  • L. F. Rodríguez-Ramos /
  • D. King /
  • L. Labadie /
  • B. Muthusubramanian /
  • G. Rodríguez-Coira /
  • J. M. Rodríguez-Ramos
Conference Proceeding cp
2016 15th Workshop on Information Optics, WIO 2016
  • Fecha: 15 November 2016
  • ISBN: 9781509021635
  • Source Type: Conference Proceeding
  • DOI: 10.1109/WIO.2016.7745603
  • Document Type: Conference Paper
  • Publisher: Institute of Electrical and Electronics Engineers Inc.
© 2016 IEEE.This paper presents a method to recover the wavefront phase at the telescope pupil, distorted because of the atmosphere action, and its use to command a deformable mirror to compensate for the optical aberrations in real time (AOLI instrument). For this purpose, an evolution of the geometric sensor [1] was used to restore the wavefront from two defocused images. Furthermore, by using specialized hardware the computations can be performed in real time, within the stability time of the atmosphere.

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