Acta Optica Sinica, Volume. 29, Issue 12, 3328(2009)
Analysis on Performance of Two-Color Holographic Storage Based on Fe:Mn:LiNbO3 Crystal
The paper established the coupling differential equations using the band-transport model. Using practical experiment's parameters,we numerically calculated and explained the time-dynamic developing process of the holographic storage,and analyzed how the oxidation-reduction degree of the crystal affects the space charge field within the crystal. Only the oxidative crystals can accomplish nonvolatile holographic storage,which its diffraction efficiency after red-light read-out increases with the increase of oxidative degree. Further more we measured the diffraction efficiencies of four specimens with different degree of oxidation-reduction and did comparable experiments of two-wave coupling between reductive crystals and oxidative crystals. The experimental results coincided with the theoretical analysis very well. At the same time,holographic dynamic range M/# and recording sensitivity of oxidative crystal was quantitatively calculated by using experimental curve in which value of M/# equaled to 5.03 (extraordinary light,wavelength,632 nm),but trade off with lower sensitivity.
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Guo Ruhai, Guo Jin, Guo Lihong, Shi Hongyan, Li Dianjun, Yang Guilong. Analysis on Performance of Two-Color Holographic Storage Based on Fe:Mn:LiNbO3 Crystal[J]. Acta Optica Sinica, 2009, 29(12): 3328
Category: Holography
Received: Oct. 21, 2008
Accepted: --
Published Online: Dec. 23, 2009
The Author Email: Ruhai Guo (hitgrh@163.com)