Active optics theory: compensation of aberration using the single actuator principle

Emmanuel Hugot; Marc Ferrari; Gérard R. Lemaître; Fabrice Madec

doi:10.1117/12.787937

23 July 2008 Active optics theory: compensation of aberration using the single actuator principle

Emmanuel Hugot, Marc Ferrari, Gérard R. Lemaître, Fabrice Madec

Proceedings Volume 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation; 70184I (2008) https://doi.org/10.1117/12.787937
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

Active Optics allows the possibility of using the generation of complex variable optical surfaces to keep the optical layout of future instruments relatively simple, something which could be of great interest to future telescopes such as E-Elt, Tmt. The aim of this article is to describe the development of the "single actuator - single mode" principle that makes it possible to generate single optical modes on a circular mirror using a single actuator at a specific location. We show the progress from design analysis (elasticity theory, finite element analysis etc) through to experimental validation for Variable Curvature Mirrors and Variable Astigmatism Mirrors. Current and future applications of these active mirrors are discussed in the framework of the EAGLE instrument for E-Elt and we present plans for further development of the technique.

Citation Download Citation

Emmanuel Hugot, Marc Ferrari, Gérard R. Lemaître, and Fabrice Madec "Active optics theory: compensation of aberration using the single actuator principle", Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70184I (23 July 2008); https://doi.org/10.1117/12.787937

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