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Proceedings Paper

Static telescope aberration measurement and correction using lucky imaging techniques
Author(s): M. López Marrero; L. F. Rodríguez Ramos; J. M. Rodríguez Ramos
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Paper Abstract

A procedure has been developed to compute static aberrations after the PSF measured with the lucky imaging technique, using a nearby star as the point source to probe the optical system. This PSF is iteratively turned into a phase map at the pupil using the Gerchberg-Saxton algorithm, and then converted to the adequate actuation information for a deformable mirror having low actuator number but large stroke capability. The main advantage of this procedure is related with the capability of correcting static aberration at the specific pointing direction and without the need of a wavefront sensor.

Paper Details

Date Published: 23 July 2008
PDF: 8 pages
Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70183L (23 July 2008); doi: 10.1117/12.787413
Show Author Affiliations
M. López Marrero, Univ. of La Laguna (Spain)
L. F. Rodríguez Ramos, Instituto de Astrofísica de Canarias (Spain)
J. M. Rodríguez Ramos, Univ. of La Laguna (Spain)

Published in SPIE Proceedings Vol. 7018:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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