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Experimental study of a modified phase diversity with a diffraction grating |
Optics Express, Vol. 20, Issue 11, pp. 12059-12066 (2012)
http://dx.doi.org/10.1364/OE.20.012059
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Abstract
The measurement ability of the conventional Phase diversity wavefront sensor (C-PD WFS) is limited by the accuracy and dynamic range of CCD cameras. In this letter, a modified Phase diversity wavefront sensor based on a diffraction grating (G-PD WFS) is proposed. We build a corresponding experimental setup to compare the measurement accuracy of the G-PD WFS and the C-GPDWFS under the same experimental conditions. The experimental results show that the measurement ability of G-PD WFS is improved obviously, especially for the wavefront aberration with larger amplitude.
© 2012 OSA
OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
ToC Category:
Adaptive Optics
History
Original Manuscript: March 21, 2012
Revised Manuscript: April 18, 2012
Manuscript Accepted: April 19, 2012
Published: May 11, 2012
Citation
Qun Luo, Linhai Huang, Naiting Gu, and Changhui Rao, "Experimental study of a modified phase diversity with a diffraction grating," Opt. Express 20, 12059-12066 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-11-12059
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References
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