Tomographic wavefront error estimation and measurement for Raven, a multi-object adaptive optics demonstrator

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Jackson, K (Author) Other; Correia, C (Author) Other; Lardière, O (Author) Other; Andersen, D (Author) Other; Bradley, C (Author) Other

Conference proceedings International

Title: Proceedings of SPIE - The International Society for Optical Engineering

Adaptive Optics Systems III

Amsterdam, 1 July 2012 through 6 July 2012

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 5 Citations

Other information

Authenticus ID: P-009-GDK

DOI: 10.1117/12.925865

Abstract (EN): Multi-Object Adaptive Optics (MOAO) is an open loop aproach to wide field AO which uses measurements from multiple guide stars (GS) to compute an estimate of the atmospheric turbulence in any direction within the GS asterism. Rather than trying to extend correction over the entire field as in Multi-Conjugate AO (MCAO), MOAO seeks only to generate high quality correction in specific directions with multiple deformable mirrors (DM), each driving the correction for an individual direction. A tomographic reconstructor uses the slopes sensed by the GS WFSs to estimate the atmospheric turbulence in the science directions. Raven is a MOAO science and technology demonstrator which is currently under development; testing of tomography algorithms is being carried out in order to begin verifying that the results predicted in simulation will be achievable with the real system. © 2012 SPIE.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7