Patent ID: 7652969

Claim:
A holographic optical accessing system including: a light source, for emitting a first light beam; a beam splitter, for splitting the first light beam into a second light beam and a third light beam, wherein a polarization state of the second light beam is different from the polarization state of the third light beam; an optical assembly module, for converting the second light beam and the third light beam to have the same polarization state and making the optical axes of the second light beam and the third light beam parallel to each other rather than overlapped with each other during a process of data recording, and for only outputting the third light beam during a process of data reading; a lens module, for focusing the second light beam and the third light beam on a focal point at a same time during the process of data recording, and for only focusing the third light beam on the focal point during the process of data reading; a storage medium, for forming the focal point in the storage medium during the process of data recording, and for converting the third light beam to a data beam during the process of data reading; and an awl-shaped interface, for reflecting the data beam and inputting the data beam to the optical assembly module from the opposite direction of the second light beam.