SYSTEM FOR STORING VOLUME HOLOGRAPHIC DIGITAL DATA

摘要

PURPOSE: A system for storing volume holographic digital data is provided to decrease an error rate of a reproduced data and improve the data reliability of a system by accurately measuring a real recording angle and suing an accuracy recording address method. CONSTITUTION: An optical divider(320) divides an inputted light. A signal optical shaping unit(260) shapes a signal light. A space optical modulator(370) modulates the signal light. A signal optical collecting unit(380) collects the signal light. A reference optical shaping means(330) shapes a reference light. An angle adjusting unit(340) deviates the reference light. A storing crystal(390) records a hologram data. A recording angle detecting unit(500) detects a recording angle of a reproduced reference light. A pixel adjusting unit(400) matches a pixel when reproducing hte hologram data. A CCD(410) converts the reproduced signal light into an electric signal. Shutters(321,322,323) control the input of the reference light, the signal light and the reproduced signal light.