Wavelength-multiplexed holograms by persistent spectral hole burning

Eiji Yagyu; Motomu Yoshimura

doi:10.1117/12.271365

10 April 1997 Wavelength-multiplexed holograms by persistent spectral hole burning

Eiji Yagyu, Motomu Yoshimura

Proceedings Volume 3011, Practical Holography XI and Holographic Materials III; (1997) https://doi.org/10.1117/12.271365
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

We have been investigating wavelength multiplexed holograms in persistent spectral hole burning (PHB) materials. We have examined PHB hologram characteristics in some organic PHB materials to show guides to produce more suitable PHB materials for wavelength multiplexed holograms. The examined characteristics were diffraction efficiency, sensitivity and the capability of wavelength-multiplexing and the distribution of diffraction efficiency at the temperature of 4.2 K. Typical characteristics in the examined materials at 4.2 K were as follows: (1) sensitivity of > 0.1 mJ/cm², (2) diffraction efficiency of < 0.3%, and (3) the holograms' intervals of > 15 GHz where adjacent holograms could be formed most closely without cross talk. Hundreds of holograms can be stored without crosstalk with each other in calculation. Furthermore, we showed that wavelength multiplexed holographic storage of tens of 2- and 3-D images could be performed at the different laser frequencies at the temperature of 4.2 K. The continuous 3D retrieval of the images of a moving object could be performed by scanning laser frequency continuously.

Citation Download Citation

Eiji Yagyu and Motomu Yoshimura "Wavelength-multiplexed holograms by persistent spectral hole burning", Proc. SPIE 3011, Practical Holography XI and Holographic Materials III, (10 April 1997); https://doi.org/10.1117/12.271365

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