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Proceedings Paper

Computer-Generated Fourier-Transform Holograms For Optical Computing
Author(s): Juha Fagerholm; Jari Turunen; Antti Vasara; Jan Westerholm
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Paper Abstract

We compare the performance of different types of periodic phase-only computer-generated Fourier transform holograms (Lohmann and Dammann -type binary holograms and kinoforms) as space-invariant interconnects in digital optical computing. Optical interconnects must exhibit high diffraction efficiency PE and low reconstruction error ΔR. Optimization of the hologram structure by simulated annealing and a greedy algorithm yields (in reconstruction of 2D fully arbitrary interconnection patterns) PE = 25-32% and ΔR 5% for binary holograms, and PE = 70-93% and ΔR < 1% for kinoforms. Hence the kinoform appears to be the optimal type of computer-generated holographic interconnect.

Paper Details

Date Published: 26 October 1989
PDF: 9 pages
Proc. SPIE 1136, Holographic Optics II: Principles and Applications, (26 October 1989); doi: 10.1117/12.961695
Show Author Affiliations
Juha Fagerholm, Helsinki University of Technology (Finland)
Jari Turunen, Helsinki University of Technology (Finland)
Antti Vasara, Helsinki University of Technology (Finland)
Jan Westerholm, Helsinki University of Technology (Finland)

Published in SPIE Proceedings Vol. 1136:
Holographic Optics II: Principles and Applications
G. Michael Morris, Editor(s)

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