One-color photorefractive holography has been investigated in the oxidized LiNbO₃:Fe:Ru crystal with recording wavelength 632.8nm. The crystal shows a high asymmetric behavior in grating buildup and readout erasure rates. This remarkable property shows that the recorded grating is quasi-nonvolatile during readout. In this paper, the effect of the pre-sensitizing process and the readout intensity on the asymmetric behavior is investigated experimentally, the results show that the recording sensitivity can be increased by the pre-sensitizing process, and the grating lifetime can be extended by increasing readout light. At last, the reason for the high asymmetry is explained qualitatively in terms of a multiple center model.

Date Published: 25 September 2013
PDF: 8 pages
Proc. SPIE 8847, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VII, 88471B (25 September 2013); doi: 10.1117/12.2023487

Published in SPIE Proceedings Vol. 8847:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VII
Shizhuo Yin; Ruyan Guo, Editor(s)