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Proceedings Paper

Phase error correction in wavefront curvature sensing via phase retrieval
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Paper Abstract

Wavefront curvature sensing with phase error correction system is carried out using phase retrieval based on a partially-developed volume speckle field. Various wavefronts are reconstructed: planar, spherical, cylindrical, and a wavefront passing through the side of a bare optical fiber. Spurious fringe pattern in the reconstructions due to a small tilt in the plane illumination wave is detected and numerically corrected for. Difference in the curvatures of two spherical wavefronts is also evaluated. Possible applications include angular displacement and range measurements.

Paper Details

Date Published: 11 August 2008
PDF: 11 pages
Proc. SPIE 7064, Interferometry XIV: Applications, 70640F (11 August 2008); doi: 10.1117/12.795852
Show Author Affiliations
Percival F. Almoro, Danish Technical Univ.-Fotonik (Denmark)
Steen G. Hanson, Danish Technical Univ.-Fotonik (Denmark)

Published in SPIE Proceedings Vol. 7064:
Interferometry XIV: Applications
Erik L. Novak; Wolfgang Osten; Christophe Gorecki, Editor(s)

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