| 摘要 |
PURPOSE: A system for storing holographic data by using spatial multiplexing is provided to improve storing density by playing back regardless of the stored location of storing medium by using a parallel beam. CONSTITUTION: A beam source(100) is driven, and the beam irradiated from the beam source is drawn in a beam drawer(110) into a desired size for being separated into a reference beam and an object beam in a beam splitter(120). Herein, the direction of the object beam is changed for 90 degrees by a mirror(140) to be inputted to an SLM(Spatial Light Modulator)(150) and modulated. Therefore, the object beam is modulated by one page unit of the binary data of light and shade, which forms real pixels by using the data inputted from the SLM. Then, the object beam modulated in the SLM passes through a concentration lens(181) and a parallel lens(182) to be converted into a parallel beam and to be stored in a storing medium(160).
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