15 September 2005 Holographic storage using transmission geometry in Zn:Fe:LiNbO3 crystal
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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.
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Suhua Luo, Qingxin Meng, Yi Zhang, Yongyuan Jiang, Zhongxiang Zhou, 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); doi: 10.1117/12.649633; https://doi.org/10.1117/12.649633
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