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Operation speed limited by the electric properties of the photorefractive spatial light modulator

Abstract

With excellent photo-electric and electro-optical effects, the photorefractive spatial light modulators can work as optically addressed modulators in optical information processing systems and parallel optical computing systems. The photo-induced current pulses of the photorefractive spatial light modulator observed in the experiments are analyzed to conclude the characteristics, and to find the relationship between the properties of the current pulse and the structural parameters. Furthermore, the origin of the photo-induced current pulse is analyzed, and the methods to improve the operation speed of the spatial light modulators are proposed. The research results will be significant for extending the applications of the photorefractive spatial light modulators, and pushing ahead the research of all-optical modulation materials and devices for optical supercomputing.

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Correspondence to Xiujian Li.

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Li, X., Hu, W., Zhang, H. et al. Operation speed limited by the electric properties of the photorefractive spatial light modulator. J Supercomput 62, 689–697 (2012). https://doi.org/10.1007/s11227-010-0516-x

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Keywords

  • Optical computing
  • Optically addressed spatial light modulator
  • Photorefractive
  • Photo-induced current pulse
  • Discrete