Holographic storage using transmission geometry in Zn:Fe:LiNbO3 crystal

Suhua Luo; Qingxin Meng; Yi Zhang; Yongyuan Jiang; Zhongxiang Zhou; Xiudong Sun

doi:10.1117/12.649633

15 September 2005 Holographic storage using transmission geometry in Zn:Fe:LiNbO₃ crystal

Suhua Luo, Qingxin Meng, Yi Zhang, Yongyuan Jiang, Zhongxiang Zhou, Xiudong Sun

Proceedings Volume 5966, Seventh International Symposium on Optical Storage (ISOS 2005); 59660S (2005) https://doi.org/10.1117/12.649633
Event: Seventh International Symposium on Optical Storage (ISOS 2005), 2005, Zhanjiang, China

Abstract

Zn:Fe:LiNbO₃ crystal has shorter response time and higher damage resistance ability than Fe:LiNbO₃ crystal because of the doping of Zn ions, and the diffraction efficiency in Zn:Fe:LiNbO₃ is comparable to that in Fe:LiNbO₃ crystal. Transmission holographic recording geometry has been taken for its larger attainable dynamic range and sensitivity than that of the 90-degree geometry. Although there is relatively strong fanning effect in transmission geometry, Zn ions in the co-doped Zn:Fe:LiNbO₃ crystal can restrain the fanning effect effectively. In our experiment, 60 holograms were angularly multiplexed and 72 spots were spatially multiplexed without hologram fixing technology, and the holograms can be stored more than ten days. A storage density of 4Gbits/cm³ has been obtained. The whole writing/reading process was accomplished automatically.

Citation Download Citation

Suhua Luo, Qingxin Meng, Yi Zhang, Yongyuan Jiang, Zhongxiang Zhou, and Xiudong Sun "Holographic storage using transmission geometry in Zn:Fe:LiNbO₃ crystal", Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59660S (15 September 2005); https://doi.org/10.1117/12.649633

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