Zhou Zhongxiang, Gong Dewei, Meng Qingxin, Zhang Jianlong
Department of Physics, Harbin Institute of Technology, Harbin, China.
Appl Opt. 2007 Apr 10;46(11):1963-7. doi: 10.1364/ao.46.001963.
Phase-coded optical correlation storage in photorefractive crystals, using a crossed cylindrical-collimating lens system, has been realized. It possesses the advantages of both storage and correlator. It can perform real time and fast selection of the information correlated to the input information from a great amount of stored information. In Zn:Fe:LiNbO(3)(0.03 wt. % Fe, 3 mol. % Zn), combining this rotational phase-coded multiplexing with angular multiplexing, 36 holograms have been successfully multiplexed and exactly identified in the same crystal volume. The cross talk and angular selectivity of such phase-coded multiplexing are discussed.
利用交叉圆柱准直透镜系统在光折变晶体中实现了相位编码光学相关存储。它兼具存储和相关器的优点。它能从大量存储信息中实时快速地选择与输入信息相关的信息。在Zn:Fe:LiNbO₃（0.03 wt.% Fe，3 mol.% Zn）中，将这种旋转相位编码复用与角度复用相结合，已成功在同一晶体体积中复用并精确识别了36个全息图。讨论了这种相位编码复用的串扰和角度选择性。
