
Proceedings Paper
Holographic combination of low-resolution Shack-Hartmann sensor and holography-based modal Zernike wavefront sensorFormat | Member Price | Non-Member Price |
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Paper Abstract
The linearity and accuracy of holography-based modal wavefront sensing (HMWS) is reduced when large aberrations
are present in the incoming wavefront. In this contribution, a combination of HMWS and a low-resolution Shack-
Hartmann sensor (LRSHS) is introduced to extend the dynamic range of HMWS via a compact holographic design. The
typically dominating low-order modes in the incoming wavefront are first corrected by the LRSHS. The system then
switches to HMWS after one or two corrections to obtain better sensor sensitivity and accuracy. First experimental
results are shown for validating the method.
Paper Details
Date Published: 13 September 2012
PDF: 12 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84473Y (13 September 2012); doi: 10.1117/12.925899
Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)
PDF: 12 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84473Y (13 September 2012); doi: 10.1117/12.925899
Show Author Affiliations
Shihao Dong, Univ. Stuttgart (Germany)
Tobias Haist, Univ. Stuttgart (Germany)
Wolfgang Osten, Univ. Stuttgart (Germany)
Tobias Haist, Univ. Stuttgart (Germany)
Wolfgang Osten, Univ. Stuttgart (Germany)
Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)
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