Investigation for persistence of two-center recording in various doubly doped LiNbO[sub]3[/sub] crystals

Zhifang Chai; Ya'nan Zhi; Lu Cui; Xiaohua Qi; Qiang Huan; Liren Liu

doi:10.1117/12.928939

15 October 2012 Investigation for persistence of two-center recording in various doubly doped LiNbO₃ crystals

Zhifang Chai, Ya'nan Zhi, Lu Cui, Xiaohua Qi, Qiang Huan, Liren Liu

Proceedings Volume 8497, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VI; 849718 (2012) https://doi.org/10.1117/12.928939
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

The effect of dopants in doubly-doped LiNbO₃ crystals on persistence of two-center recording is investigated experimentally and theoretically in this paper. Six kinds of doubly-doped LiNbO₃ crystals are used in experiments with 633nm recording and 404nm sensitizing, the results show that LiNbO₃:Ce:Cu crystal has the largest persistence. The dependence of persistence on bulk photo-voltaic coefficient and photo-excitation coefficient of deep center for recording light (K₁₂ and S₁₂) is discussed based on jointly solving the two-center material equations and the coupled-wave equations. The results show that both the increase of S₁₂ and the decrease of K₁₂ will result in the decrease of the persistence. When a holographic storage system is designed, the appropriate dopant will help to obtain the high persistence and dynamic range simultaneously.

Citation Download Citation

Zhifang Chai, Ya'nan Zhi, Lu Cui, Xiaohua Qi, Qiang Huan, and Liren Liu "Investigation for persistence of two-center recording in various doubly doped LiNbO₃ crystals", Proc. SPIE 8497, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VI, 849718 (15 October 2012); https://doi.org/10.1117/12.928939

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