The present invention relates to a holographic digital data storage system; and, more particularly, to an apparatus and method for controlling tracking and focusing of a laser beam on {HEAD ~ a disk} of {TAIL ~ a holographic medium} while the disk is rotating during playback 
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The present invention relates to a holographic digital data storage system ; and , more particularly , to an apparatus and method for controlling tracking and focusing of a laser beam on { HEAD ~ a disk } of { TAIL ~ a holographic medium } while the disk is rotating during playback
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH