Wavelength selective optical data storage system

Details Wavelength selective optical data storage system Wavelength selective optical data storage system

G - Physics

11

B

88/97.4

G11B 7/00 (2006.01) G11B 7/0045 (2006.01) G11B 7/24 (2006.01)

Patent

CA 1301505

ABSTRACT OF THE DISCLOSURE Information is recorded by creating recording hole at a predetermined wavelength position on a memory element with a characteristic of wavelength selective optical data storage. Because the memory element is pit- like, it causes diffraction of a light beam transmitted through or reflected by it. The diffracted beams are detected for positioning a beam spot right on the selected memory element.

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