Adaptive Detection of Wave Aberrations Based on the Multichannel Filter

An adaptive method for determining the type and magnitude of aberration in a wide range is proposed on the basis of an optical processing of the analyzed wavefront using a multichannel filter matched to the adjustable Zernike phase functions. The approach is based on an adaptive (or step-by-step) co...

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Bibliographic Details
Published in:Photonics 2022-03, Vol.9 (3), p.204
Main Authors: Khorin, Pavel A., Porfirev, Alexey P., Khonina, Svetlana N.
Format: Article
Language:English
Subjects:
Aberration
Adaptive filters
adaptive method
multichannel diffractive optical element
Optics
Spatial light modulators
Symmetry
Wave fronts
wavefront aberrations
wavefront sensor
Zernike functions
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Summary:An adaptive method for determining the type and magnitude of aberration in a wide range is proposed on the basis of an optical processing of the analyzed wavefront using a multichannel filter matched to the adjustable Zernike phase functions. The approach is based on an adaptive (or step-by-step) compensation of wavefront aberrations based on a dynamically tunable multichannel filter implemented on a spatial light modulator. For adaptive filter adjustment, a set of criteria is proposed that takes into account not only the magnitude of the correlation peak, but also the maximum intensity, compactness, and orientation of the distribution in each diffraction order. The experimental results have shown the efficiency of the proposed approach for detecting wavefront aberrations in a wide range (from 0.1λ to λ).
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics9030204