Abstract
A novel 2-D holographic disk recording of binary data is proposed and discussed as an alternative to the bit-by-bit recording disk. Using a double diffraction optical system with a holographic beam splitter, the disk holds interference fringes on a hologram recording disk stationary during exposure. The disk recording time is shortened by more than a factor of 100 compared with that of the conventional method, and the data transfer rate can be expected to exceed 100 Mbits/s. The light beam positioning control accuracy and the mechanical requirements of a disk are also discussed.
© 1988 Optical Society of America
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