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Proceedings Paper

Quasi-nonvolatile holographic storage in doubly-doped LiNbO3 crystals
Author(s): Zhifang Chai; De'an Liu; Liren Liu; Ya'nan Zhi; Dashan Li
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Paper Abstract

The recording and readout characteristics in doubly-doped LiNbO3 crystal with one-color scheme are investigated based on jointly solving material equations and coupled-wave equations. Asymmetry between grating buildup and readout process is found when electrons in deep centers can be excited by recording light; the grating is quasi-nonvolatile. The shorter recording wavelength, and dopant in deep centers with a closer energy level to Fe in LiNbO3 crystal, can strengthen such asymmetry. The further investigation shows that two aspects induce the quasi-nonvolatile behavior in doubly-doped LiNbO3 crystal, one is the beam coupling between incident and diffracted beams, the other is two grating form in both centers. This research provides a possible method to prolong the lifetime of grating in doubly-doped LiNbO3 crystals.

Paper Details

Date Published: 17 September 2007
PDF: 8 pages
Proc. SPIE 6698, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications, 669815 (17 September 2007); doi: 10.1117/12.731945
Show Author Affiliations
Zhifang Chai, East China Normal Univ. (China)
De'an Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Ya'nan Zhi, Shanghai Institute of Optics and Fine Mechanics (China)
Dashan Li, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 6698:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications
Ruyan Guo; Shizhuo S. Yin; Francis T.S. Yu, Editor(s)

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