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Optical Engineering

Aspherical wavefront shaping with combined computer generated holograms
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Paper Abstract

The problem of metrological standards development for aspherical wavefronts is discussed. A method for aspherical wavefront shaping by means of combined (or twin, multiplexed) computer generated hologram (CCGH) is presented. The CCGH reconstructs two wavefronts: the first one is used for calibration of the second one by means of a Fizeau interferometer and a highly reflective flat reference surface. Different CCGH encoding methods are discussed. The design of a CCGH with subaperture division in the shape of angular sectors is presented. The absence of cross-talk errors in both wavefronts was demonstrated experimentally.

Paper Details

Date Published: 7 March 2013
PDF: 7 pages
Opt. Eng. 52(9) 091709 doi: 10.1117/1.OE.52.9.091709
Published in: Optical Engineering Volume 52, Issue 9
Show Author Affiliations
Alexander G. Poleshchyk, Institute of Automation and Electrometry (Russian Federation)
Ruslan K. Nasyrov, Institute of Automation and Electrometry (Russian Federation)

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