It is, therefore, {HEAD ~ a primary object} of {TAIL ~ the present invention} to provide a pickup apparatus and method for controlling a tracking and focusing servo in a holographic storage system, capable of tracking and focusing a laser beam on a target track of a holographic medium 
of
It is , therefore , { HEAD ~ a primary object } of { TAIL ~ the present invention } to provide a pickup apparatus and method for controlling a tracking and focusing servo in a holographic storage system , capable of tracking and focusing a laser beam on a target track of a holographic medium
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH