Open AccessMulti-zonal computer-generated holograms for high-precision optical adjustment purposes: part I: sensitivity and optical performance
Author(s) -
C. Bodendorf,
Frank Grupp,
Andreas Bode,
Jean-Michel Asfour
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.013637
Subject(s) - wavefront , optics , tilt (camera) , holography , sensitivity (control systems) , interferometry , computer generated holography , optical telescope , computer science , physics , telescope , mathematics , electronic engineering , engineering , geometry
Multi-Zonal computer generated holograms (MZ-CGHs) in combination with interferometric wavefront measurements are perfectly suited as optical adjustment tools - especially if the demands on the alignment accuracy are very high. After reviewing the basic idea for alignment with MZ-CGHs, we derive the analytic relation between the interferometrically observed tilt and power values and the associated lens placement errors, including estimates of the applied approximations. This analysis yields the parameters determining the principle sensitivity of the method. Subsequently, the achievable accuracy of large 6″ MZ-CGHs in practical application is tested with a series of different optical measurements which confirm the technical feasibility. The productive use of the technique will be presented in part II of the paper for different examples in the framework of the Euclid space telescope.