Closed-loop adaptive optic comparison between a Shack-Hartmann and a distorted-grating wavefront sensor

2004 ◽  
Author(s):  
Paul Harrison ◽  
Gavin R. G. Erry ◽  
Leonard J. Otten III ◽  
D. M. Cuevas ◽  
Lawrence D. Weaver
Keyword(s):  
Closed Loop ◽  
Adaptive Optic ◽  
Wavefront Sensor

Closed-loop adaptive optic comparison between a Shack-Hartmann and a distorted grating wavefront sensor

2004 ◽  
Author(s):  
Paul Harrison ◽  
Gavin R. G. Erry ◽  
Leonard J. Otten ◽  
Desirae M. Cuevas ◽  
Lawrence D. Weaver
Keyword(s):  
Closed Loop ◽  
Adaptive Optic ◽  
Wavefront Sensor

Testing the pyramid wavefront sensor without modulation used in the closed-loop adaptive optics system

2012 ◽  
Author(s):  
Shengqian Wang ◽  
Changhui Rao ◽  
Ang Zhang ◽  
Xuejun Zhang ◽  
Kai Wei ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Wavefront Sensor ◽  
Adaptive Optics System

Experimental Performance Of The I3 Wavefront Sensor For Closed-Loop Adaptive Optics

1980 ◽  
Author(s):  
L. E. Schmutz ◽  
J. K. Bowker ◽  
J. Feinleib ◽  
S. N. Landon ◽  
S. J. Tubbs
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Wavefront Sensor ◽  
Experimental Performance

Closed loop adaptive system with Hartmann wavefront sensor for CO2 laser radiation correction

2014 ◽  
Author(s):  
Alexis Kudryashov ◽  
Alex Alexandrov ◽  
Vadim Samarkin ◽  
Alexey Rukosuev ◽  
Pierre Galarneau
Keyword(s):  
Laser Radiation ◽  
Closed Loop ◽  
Adaptive System ◽  
Wavefront Sensor ◽  
Radiation Correction

Wavefront response matrix for closed-loop adaptive optics system based on non-modulation pyramid wavefront sensor

2012 ◽  
Vol 285 (12) ◽  
pp. 2814-2820
Author(s):  
Jianxin Wang ◽  
Fuzhong Bai ◽  
Yu Ning ◽  
Fei Li ◽  
Wenhan Jiang
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Wavefront Sensor ◽  
Response Matrix ◽  
Adaptive Optics System

The pyramid wavefront sensor used in the closed-loop adaptive optics system

2016 ◽  
Author(s):  
Shengqian Wang ◽  
Kai Wei ◽  
Wenjia Zheng ◽  
Changhui Rao
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Wavefront Sensor ◽  
Adaptive Optics System

scholarly journals SCExAO: First Results and On-Sky Performance

2013 ◽  
Vol 8 (S299) ◽  
pp. 34-35 ◽  
Author(s):  
Thayne Currie ◽  
Olivier Guyon ◽  
Frantz Martinache ◽  
Christophe Clergeon ◽  
Michael McElwain ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Focal Plane ◽  
Closed Loop ◽  
Giant Planets ◽  
Wavefront Sensor ◽  
Strehl Ratio ◽  
Wavefront Control ◽  
Contrast Gain ◽  
First Results ◽  
Plane Wavefront

AbstractWe present new on-sky results for the Subaru Coronagraphic Extreme Adaptive Optics imager (SCExAO) verifying and quantifying the contrast gain enabled by key components: the closed-loop coronagraphic low-order wavefront sensor (CLOWFS) and focal plane wavefront control (“speckle nulling”). SCExAO will soon be coupled with a high-order, Pyramid wavefront sensor which will yield > 90% Strehl ratio and enable 106–107 contrast at small angular separations allowing us to image gas giant planets at solar system scales. Upcoming instruments like VAMPIRES, FIRST, and CHARIS will expand SCExAO's science capabilities.

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