Abstract
In this paper, we propose all-optical multifunctional logic gates for image information using photorefractive (PR) two-wave mixing. The optical setup is simply configured compared with the other all-optical logic gates for image information. The XOR-, OR-, and AND-operation are all-optically performed in the same optical setup through the transitional response of the PR medium. One can switch these logic operations simply by means of the on-off control of the signal and the pump beam illumination. We analyze the spatial distribution of beam intensity in these logic gates using a finite-difference beam propagation method (FD-BPM) and the crosstalk between adjoining pixels is examined from the result. We also experimentally verify that the XOR-, OR-, and AND-gates are realized in the same optical setup.
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Ishikawa, D., Okamoto, A., Honma, S. et al. All-Optical Multifunctional Logic Gates for Image Information Using Photorefractive Two-Wave Mixing. OPT REV 14, 246–251 (2007). https://doi.org/10.1007/s10043-007-0246-3
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DOI: https://doi.org/10.1007/s10043-007-0246-3