25 August 2005 Optical design for the narrow field infrared adaptive optics system (NFIRAOS) petite on the thirty meter telescope
Author Affiliations +
Abstract
We describe an exploratory optical design for the Narrow Field InfraRed Adaptive Optics (AO) System (NFIRAOS) Petite, a proposed adaptive optics system for the Thirty Meter Telescope Project. NFIRAOS will feed infrared spectrograph and wide-field imaging instruments with a diffraction limited beam. The adaptive optics system will require multi-guidestar tomographic wavefront sensing (WFS) and multi-conjugate AO correction. The NFIRAOS Petite design specifications include two small 60 mm diameter deformable mirrors (DM's) used in a woofer/tweeter or multiconjugate arrangement. At least one DM would be a micro-electromechanical system (MEMS) DM. The AO system would correct a 10 to 30 arcsec diameter science field as well as laser guide stars (LGS's) located within a 60 arcsec diameter field and low-order or tip/tilt natural guide stars (NGS's) within a 60 arcsec diameter field. The WFS's are located downstream of the DM's so that they can be operated in true closed-loop, which is not necessarily a given in extremely large telescope adaptive optics design. The WFS's include adjustable corrector elements which correct the static aberrations of the AO relay due to field position and LGS distance height.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brian J. Bauman, Brian J. Bauman, Donald T. Gavel, Donald T. Gavel, Richard G. Dekany, Richard G. Dekany, Brent L. Ellerbroek, Brent L. Ellerbroek, } "Optical design for the narrow field infrared adaptive optics system (NFIRAOS) petite on the thirty meter telescope", Proc. SPIE 5903, Astronomical Adaptive Optics Systems and Applications II, 590303 (25 August 2005); doi: 10.1117/12.618220; https://doi.org/10.1117/12.618220
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Adaptive optics for the Thirty Meter Telescope
Proceedings of SPIE (October 08 2005)
Altair interactions
Proceedings of SPIE (September 14 2004)
Infrared optimized AO system for a 15 to 20...
Proceedings of SPIE (February 03 2003)
Curvature-based adaptive optics for the NASA IRTF
Proceedings of SPIE (July 06 2000)

Back to Top