
Proceedings Paper
Wavefront sensors for adaptive optical systemsFormat | Member Price | Non-Member Price |
---|---|---|
$14.40 | $18.00 |
![]() |
GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. | Check Access |
Paper Abstract
A high precision Shack-Hartmann wavefront (WF) sensor has been developed on the basis of a low-aperture off-axis
diffraction lens array. The device is capable of measuring WF slopes at array sub-apertures of size 640x640 μm with an
error not exceeding 4.80 arcsec (0.15 pixel), which corresponds to the standard deviation equal to 0.017λ at the
reconstructed WF with wavelength λ . Also the modification of this sensor for adaptive system of solar telescope using
extended scenes as tracking objects, such as sunspot, pores, solar granulation and limb, is presented.
The software package developed for the proposed WF sensors includes three algorithms of local WF slopes estimation
(modified centroids, normalized cross-correlation and fast Fourier-demodulation), as well as three methods of WF
reconstruction (modal Zernike polynomials expansion, deformable mirror response functions expansion and phase
unwrapping), that can be selected during operation with accordance to the application.
Paper Details
Date Published: 12 October 2010
PDF: 8 pages
Proc. SPIE 7828, Optics in Atmospheric Propagation and Adaptive Systems XIII, 78280P (12 October 2010); doi: 10.1117/12.865964
Published in SPIE Proceedings Vol. 7828:
Optics in Atmospheric Propagation and Adaptive Systems XIII
Karin Stein; John D. Gonglewski, Editor(s)
PDF: 8 pages
Proc. SPIE 7828, Optics in Atmospheric Propagation and Adaptive Systems XIII, 78280P (12 October 2010); doi: 10.1117/12.865964
Show Author Affiliations
V. P. Lukin, Zuev Institute of Atmospheric Optics (Russian Federation)
N. N. Botygina, Zuev Institute of Atmospheric Optics (Russian Federation)
N. N. Botygina, Zuev Institute of Atmospheric Optics (Russian Federation)
O. N. Emaleev, Zuev Institute of Atmospheric Optics (Russian Federation)
P. A. Konyaev, Zuev Institute of Atmospheric Optics (Russian Federation)
P. A. Konyaev, Zuev Institute of Atmospheric Optics (Russian Federation)
Published in SPIE Proceedings Vol. 7828:
Optics in Atmospheric Propagation and Adaptive Systems XIII
Karin Stein; John D. Gonglewski, Editor(s)
© SPIE. Terms of Use
