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Baba N, Mutoh K. Measurement of telescope aberrations through atmospheric turbulence by use of phase diversity. Appl Opt. 2001;40(4):544-52doi: 10.1364/ao.40.000544.
Baba, N., & Mutoh, K. (2001). Measurement of telescope aberrations through atmospheric turbulence by use of phase diversity. Applied optics, 40(4), 544-52. https://doi.org/10.1364/ao.40.000544
Baba, N, and Mutoh, K. "Measurement of telescope aberrations through atmospheric turbulence by use of phase diversity." Applied optics vol. 40,4 (2001): 544-52. doi: https://doi.org/10.1364/ao.40.000544
Baba N, Mutoh K. Measurement of telescope aberrations through atmospheric turbulence by use of phase diversity. Appl Opt. 2001 Feb 01;40(4):544-52. doi: 10.1364/ao.40.000544. PMID: 18357030.
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Appl Opt. 2001 Feb 01;40(4):544-52. doi: 10.1364/ao.40.000544.

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

Applied optics

N Baba, K Mutoh

Affiliations

  1. Department of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo, 060-8628 Japan. [email protected]

PMID: 18357030 DOI: 10.1364/ao.40.000544

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.

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