The Relation Between Property of High Density Volume Holographic Storage

The relation between parameters (including dynamic range, uniformity of diffraction efficiency and Bragg selectivity), Which will affect the performance of highdensity volume holographic storage, and geometric conffiguration is discussed. The importance of the three parameters of balanced consideration in the beampath configuration is emphasized. According to the analysis of LiNbO3 crystal with the principle of the balance, it is pointed out that the 90° writing beampath with Olight coupling is the best geometic configuration.