Simulation model based approach for long exposure atmospheric point spread function reconstruction for laser guide star multiconjugate adaptive optics

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Gilles, L (Author) Other; Correia, C (Author) Other; Véran, JP (Author) Other; Wang, LQ (Author) Other; Ellerbroek, B (Author) Other

Journal

Title: Applied Optics

Vol. 51 No. 16

Pages: 7443-7458

ISSN: 1559-128X

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 15 Citations

Scopus - 18 Citations

Other information

Authenticus ID: P-009-G8F

DOI: 10.1364/ao.51.007443

Abstract (EN): This paper discusses an innovative simulation model based approach for long exposure atmospheric point spread function (PSF) reconstruction in the context of laser guide star (LGS) multiconjugate adaptive optics (MCAO). The approach is inspired from the classical scheme developed by Véran et al. [J. Opt. Soc. Am. A 14, 3057 (1997)] and Flicker et al. [Astron. Astrophys. 400, 1199 (2003)] and reconstructs the long exposure optical transfer function (OTF), i.e., the Fourier transformed PSF, as a product of separate long-exposure tip/tilt removed and tip/tilt OTFs, each estimated by postprocessing system and simulation telemetry data. Sample enclosed energy results assessing reconstruction accuracy are presented for the Thirty Meter Telescope LGS MCAO system currently under design and show that percent level absolute and differential photometry over a 30 arcsec diameter field of view are achievable provided the simulation model faithfully represents the real system. © 2012 Optical Society of America.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 16