Photorefractive spatial light modulator using anisotropic self-diffraction in BaTiO3

Ching Cherng Sun, Bor Wang, Jenq Yang Chang

Research output: Contribution to journalConference articlepeer-review


We demonstrate a photorefractive incoherent-to-coherent optical converter (PICOC) using anisotropic self-diffraction (ASD) in BaTiO3. Only two writing beams are required in the spatial light modulator and no extra readout beam is required. The diffraction efficiency reaches 50%. the resolution by using a thin crystal without expense of the diffraction efficiency because of the inherent high diffraction efficiency of ASD in BaTiO3.

Original languageEnglish
Pages (from-to)146-151
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1998
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV - San Diego, CA, United States
Duration: 22 Jul 199823 Jul 1998


  • Anisotropic self-diffraction
  • Photorefractive effect
  • Photorefractive incoherent-to-coherent optical converter


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