Photorefractive real-time phase-coded optical correlation storage using a crossed cylindrical-collimating lens system.
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.
Zhou
Zhongxiang
Z
Department of Physics, Harbin Institute of Technology, Harbin, China.
Gong
Dewei
D
Meng
Qingxin
Q
Zhang
Jianlong
J