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Optics Letters

Optics Letters


  • Vol. 18, Iss. 7 — Apr. 1, 1993
  • pp: 534–536

Electric-field multiplexing/demultiplexing of volume holograms in photorefractive media

Anthony Kewitsch, Mordechai Segev, Amnon Yariv, and Ratnakar R. Neurgaonkar  »View Author Affiliations

Optics Letters, Vol. 18, Issue 7, pp. 534-536 (1993)

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We propose a new method of volume hologram multiplexing/demultiplexing in noncentrosymmetric media. Volume holograms may be multiplexed by tuning the material parameters of the recording medium (such as refractive index or lattice parameters) while keeping the external parameters (wavelength and angles) fixed. For example, an external dc electric field alters the index of refraction through the electro-optic effect, effectively changing the recording and reconstruction wavelengths in the storage medium. Then the storage of holograms at different fields, hence different indices of refraction, is closely related to wavelength multiplexing. We demonstrate this concept in a preliminary experiment by electrically multiplexing two volume holograms in a strontium barium niobate crystal.

© 1993 Optical Society of America

Original Manuscript: October 23, 1992
Published: April 1, 1993

Anthony Kewitsch, Ratnakar R. Neurgaonkar, Mordechai Segev, and Amnon Yariv, "Electric-field multiplexing/demultiplexing of volume holograms in photorefractive media," Opt. Lett. 18, 534-536 (1993)

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