scholarly journals Simulation Study of a Low-Light-Level Wavefront Sensor Driving a Low-Order, Near-IR Adaptive Optics System

1994 ◽  
Vol 158 ◽  
pp. 308-310
Author(s):  
David W. Tyler ◽  
Gary C. Loos
Keyword(s):  
Adaptive Optics ◽  
System Performance ◽  
Near Infrared ◽  
Light Level ◽  
Wavefront Sensor ◽  
High Fidelity ◽  
Low Light ◽  
Near Ir ◽  
Adaptive Optics System ◽  
Low Order

Two high-fidelity computer simulations are used to study low-order adaptive optics systems operating in the near-infrared. We study obtainable system performance using very dim reference sources at three IR wavelengths.

Clustering of wavefront sensor subapertures to improve adaptive optics system performance

1997 ◽  
Author(s):  
Robert T. Brigantic ◽  
Michael C. Roggemann ◽  
Byron M. Welsh ◽  
Kenneth W. Bauer
Keyword(s):  
Adaptive Optics ◽  
System Performance ◽  
Wavefront Sensor ◽  
Adaptive Optics System

PYRAMIR: a near-infrared pyramid wavefront sensor for the Calar Alto adaptive optics system

2003 ◽  
Author(s):  
Joana B. Costa ◽  
Stefan Hippler ◽  
Markus Feldt ◽  
Simone Esposito ◽  
Roberto Ragazzoni ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Wavefront Sensor ◽  
Adaptive Optics System ◽  
Calar Alto

A simple low-order adaptive optics system for near-infrared applications

1991 ◽  
Vol 103 ◽  
pp. 131 ◽  
Author(s):  
Francois Roddier ◽  
Malcolm Northcott ◽  
J. Elon Graves
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Adaptive Optics System ◽  
Low Order

OPTICAL AND MECHANICAL DESIGN OF THE CHARA ARRAY ADAPTIVE OPTICS

2013 ◽  
Vol 02 (02) ◽  
pp. 1340007 ◽  
Author(s):  
X. CHE ◽  
L. STURMANN ◽  
J. D. MONNIER ◽  
T. A. TEN BRUMMELAAR ◽  
J. STURMANN ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Angular Resolution ◽  
Mechanical Design ◽  
Wavefront Sensor ◽  
High Angular Resolution ◽  
Stellar Systems ◽  
Tilt Correction ◽  
Chara Array ◽  
Adaptive Optics System

The CHARA array is an optical/near infrared interferometer consisting of six 1-meter diameter telescopes with the longest baseline of 331 m. With high angular resolution, the CHARA array provides a unique and powerful way of studying nearby stellar systems. In 2011, the CHARA array was funded by NSF-ATI for an upgrade of adaptive optics systems to all six telescopes to improve the sensitivity by several magnitudes. The initial grant covers Phase I of the adaptive optics system, which includes an on-telescope Wavefront Sensor and fast tip/tilt correction. We are currently seeking funding for Phase II which will add fast deformable mirrors at the telescopes to close the loop. This paper will describe the design of the project, and show simulations of how much improvement the array will gain after the upgrade.

Image-quality metrics for characterizing adaptive optics system performance

1997 ◽  
Vol 36 (26) ◽  
pp. 6583 ◽  
Author(s):  
Robert T. Brigantic ◽  
Michael C. Roggemann ◽  
Kenneth W. Bauer ◽  
Byron M. Welsh
Keyword(s):  
Image Quality ◽  
Adaptive Optics ◽  
System Performance ◽  
Quality Metrics ◽  
Image Quality Metrics ◽  
Adaptive Optics System

Development of a low-order Adaptive Optics system at Udaipur Solar Observatory

2008 ◽  
Vol 29 (1-2) ◽  
pp. 353-357 ◽  
Author(s):  
A. R. Bayanna ◽  
B. Kumar ◽  
R. E. Louis ◽  
P. Venkatakrishnan ◽  
S. K. Mathew
Keyword(s):  
Adaptive Optics ◽  
Solar Observatory ◽  
Adaptive Optics System ◽  
Low Order

Real time controller for 37-element low-order solar adaptive optics system at 1m new vacuum solar telescope

2012 ◽  
Author(s):  
Lei Zhu ◽  
Naiting Gu ◽  
Shanqiu Chen ◽  
Lanqiang Zhang ◽  
Xiaoyun Wang ◽  
...  
Keyword(s):  
Real Time ◽  
Adaptive Optics ◽  
Solar Telescope ◽  
Adaptive Optics System ◽  
Low Order
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