Optical implementation of a photorefractive fractional joint transforms correlator

J. E. Rueda, A. Salazar, M. Del

Research output: Contribution to journalConference articlepeer-review

Abstract

The optical implementation of a photorefractive fractional joint transforms correlator was studied. It was based on a non-degenerated four-wave mixing in a photorefractive crystal BSO. The fractional Fourier transform of the input scene, and a fractional Fourier transform of the reference image, were found interfere in the photorefractive material BSO to produce a phase hologram. The experimental results of the study of sensibility from the correlator to the rotation of the input patterns were presented.

Original languageEnglish
Pages (from-to)553-556
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4419
DOIs
StatePublished - 2001
Externally publishedYes
Event4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications - Tandil, Argentina
Duration: 3 Sep 20017 Sep 2001

Keywords

  • Correlation
  • Fractional Fourier transform
  • Nonlinear optics
  • Photorefractive

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