| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a system and a method for recording and reproducing a holographic interferogram with an optical servo. <P>SOLUTION: The holographic interferogram is continuously recorded on a holographic storage medium 900 having a servo trace layer 960, and reproduced swiftly and correctly. Moreover, a reference beam 110 passes through the holographic storage medium 900, is reflected by a reflecting mirror 260 disposed on the other side of the holographic storage medium 900, and is subsequently guided to a sensor 600 for analysis concerning intensity distribution, thereby adjusting an incident angle between both the reflecting mirror 260 and the reference beam 110. Furthermore, a plurality of servo tracks are provided on a plurality of different layers of the holographic storage medium 900 in order to recording the holographic interferogram on the plurality of different layers. <P>COPYRIGHT: (C)2009,JPO&INPIT |
