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