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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 4 — Feb. 1, 2001
  • pp: 544–552

Measurement of telescope aberrations through atmospheric turbulence by use of phase diversity

Naoshi Baba and Kohta Mutoh  »View Author Affiliations


Applied Optics, Vol. 40, Issue 4, pp. 544-552 (2001)
http://dx.doi.org/10.1364/AO.40.000544


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Abstract

We conduct computer simulations of the reconstruction of a wave front at a telescope pupil with the phase-diversity method. An instantaneous wave front is reconstructed from focused and defocused specklegrams of a point star. In the wave-front reconstruction we do not fit the wave front to Zernike polynomials but retrieve the phase with a phase-unwrapping procedure. Averaging over many atmospherically perturbed wave fronts leads to the residual phase error, namely, the aberration of the telescope. The scintillation effect, nonuniformity of amplitude on a telescope pupil, is also discussed.

© 2001 Optical Society of America

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(030.6610) Coherence and statistical optics : Stellar speckle interferometry
(100.5070) Image processing : Phase retrieval
(110.6770) Imaging systems : Telescopes
(350.1260) Other areas of optics : Astronomical optics

History
Original Manuscript: May 30, 2000
Revised Manuscript: October 23, 2000
Published: February 1, 2001

Citation
Naoshi Baba and Kohta Mutoh, "Measurement of telescope aberrations through atmospheric turbulence by use of phase diversity," Appl. Opt. 40, 544-552 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-4-544

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