Burr G W, Leyva I
Opt Lett. 2000 Apr 1;25(7):499-501. doi: 10.1364/ol.25.000499.
We describe and demonstrate a volume holographic storage system in which a phase-conjugate object beam is reconstructed by the same reference beam that was used for recording. An intermediate hologram is used as a temporary buffer, recorded with its own reference beam and the data-bearing object beam. Reading this buffer hologram with the phase conjugate of its reference beam reconstructs the phase conjugate of the object beam, which can then be recorded into the desired volume hologram for long-term storage. This method combines the immunity to lens aberrations provided by phase-conjugate readout with the simplicity of using the same multiplexed reference beam for both recording and readout. Only a single pair of phase-conjugate reference beams is required. Experimental results are shown with a single LiNbO(3):Fe crystal used as both buffer and storage holograms and a self-pumped phase-conjugate mirror in BaTiO(3) that provides the pair of phase-conjugate reference beams.
我们描述并演示了一种体全息存储系统，在该系统中，相位共轭物光束由用于记录的同一参考光束重建。一个中间全息图用作临时缓冲器，用其自身的参考光束和携带数据的物光束进行记录。用该缓冲全息图参考光束的相位共轭读取该缓冲全息图，可重建物光束的相位共轭，然后可将其记录到所需的体全息图中进行长期存储。该方法将相位共轭读出所提供的对透镜像差的免疫性与使用同一复用参考光束进行记录和读出的简便性结合在一起。仅需要一对相位共轭参考光束。给出了使用单个LiNbO(3):Fe晶体同时作为缓冲和存储全息图以及BaTiO(3)中的自泵浦相位共轭镜提供一对相位共轭参考光束的实验结果。
