Optical information apparatus
2015
The invention discloses an optical information apparatus in order to correct signal-to-noise ratio degradation caused by a position error of an aperture filter relative to a signal beam and ensure a high recording signal quality in an optical information apparatus using holography. The apparatus includes an optical detection system capable of conducting position adjustment of the aperture filter by using a signal beam, and the aperture filter is positioned with high precision and can achieve high recording signal quality.
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