| 摘要 |
The present invention relates to an apparatus for reading from and/or writing to holographic storage media with a simplified common aperture setup. According to the invention an apparatus for reading a data page from and/or writing a data page to a holographic storage medium, with a coaxial arrangement of one or more reference beams and an object beam or a reconstructed object beam, has one or more spatial light modulators for generating the one or more reference beams by modulating a light beam with a modulation pattern having a spatial frequency higher than the spatial frequency of the data page.
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