Computer-Generated Fourier-Transform Holograms For Optical Computing

Juha Fagerholm; Jari Turunen; Antti Vasara; Jan Westerholm

doi:10.1117/12.961695

26 October 1989 Computer-Generated Fourier-Transform Holograms For Optical Computing

Juha Fagerholm, Jari Turunen, Antti Vasara, Jan Westerholm

Proceedings Volume 1136, Holographic Optics II: Principles and Applications; (1989) https://doi.org/10.1117/12.961695
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

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.

Citation Download Citation

Juha Fagerholm, Jari Turunen, Antti Vasara, and Jan Westerholm "Computer-Generated Fourier-Transform Holograms For Optical Computing", Proc. SPIE 1136, Holographic Optics II: Principles and Applications, (26 October 1989); https://doi.org/10.1117/12.961695

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