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  • Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM
  • OSA Technical Digest (CD) (Optica Publishing Group, 2007),
  • paper PMA4
  • https://doi.org/10.1364/AOPT.2007.PMA4

Online centroid gain determination for LGS AO systems

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We present a novel method for centroid gain estimation for quad-cell AO systems that allows to determine both the optimal centroid gains and the sodium layer thickness in the case of LGS AO. This method is based on a periodical introduction of perturbations in the wavefront followed by a lock-in detection of these perturbations.

© 2007 Optical Society of America

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