22–24 oct. 2018
Paris
Fuseau horaire Europe/Paris

Update on pyramid topics: spiders, LWE, NCPAs, M4, sensitivtiy, K vs R band, ...

22 oct. 2018, 14:30
20m
Amphithéâtre Turing (Paris)

Amphithéâtre Turing

Paris

Université Paris Diderot Bâtiment Sophie Germain, niveau -1 8 place Aurélie Nemours - 75013 Paris

Orateurs

Dr Andreas Obereder (RICAM, Austrian Academy of Science)Dr Iuliia Shatokhina (RICAM, Austrian Academy of Science)

Summary

We summarize our experience on the performance of several wavefront reconstruction algorithms under a variety of real-life phenomena.

We compare several approaches solving the spiders problem (pupil fragmentation), and focus on illumination and modulation as parameters influencing the result. Also, we analyze the severity of the pupil fragmentation problem in different bands and the related sensitivity or optical gain of the pyramid sensor.

We demonstrate results including the real M4 geometry. Additionally, we show first tests to evaluate the performance of the suggested reconstruction algorithms in the presence of non-common path aberrations.

Auteur principal

Dr Andreas Obereder (RICAM, Austrian Academy of Science)

Co-auteurs

Dr Iuliia Shatokhina (RICAM, Austrian Academy of Science) Prof. Ronny Ramlau (JKU) Victoria Hutterer (Johannes Kepler University Linz)

Documents de présentation