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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 25 — Dec. 11, 2006
  • pp: 11925–11934

Linearity of the pyramid wavefront sensor

Anna Burvall, Elizabeth Daly, Stéphane R. Chamot, and Christopher Dainty  »View Author Affiliations

Optics Express, Vol. 14, Issue 25, pp. 11925-11934 (2006)

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The pyramid wavefront sensor is very similar to the Fourier knife-edge test, but employs dynamic modulation to quantify the phase derivative. For circular modulation, we compare approximate geometrical optics calculations, more exact diffraction calculations, and experimental results. We show that both the sinusoidal and the approximate linear relationship between wavefront derivative and wavefront sensor response can be derived rigorously from diffraction theory. We also show that geometrical, diffraction and experimental results are very similar, and conclude that the approximate geometrical predictions can be used in place of the more complex diffraction results.

© 2006 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(050.1960) Diffraction and gratings : Diffraction theory
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Atmospheric and ocean optics

Original Manuscript: September 11, 2006
Revised Manuscript: November 14, 2006
Manuscript Accepted: November 16, 2006
Published: December 11, 2006

Anna Burvall, Elizabeth Daly, Stéphane R. Chamot, and Christopher Dainty, "Linearity of the pyramid wavefront sensor," Opt. Express 14, 11925-11934 (2006)

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