Patent ID: 8305862

Claim:
An optical information recording and reproducing device, configured to record a first digital information onto a holographic storage medium, by using a signal beam and a reference beam, and to record a second digital information onto a Blu-ray disc, the optical information recording and reproducing device comprising: a first laser light source configured to generate a first light beam to cure the holographic storage medium, and to record the second digital information onto the Blu-ray disc; a second laser light source configured to generate a second light beam to record the first digital information onto the holographic storage medium; a first beam splitter configured to transmit or reflect the first light beam from the first laser light source, and to generate a third light beam and a fourth light beam, the third light beam configured to cure the holographic storage medium, and the fourth light beam configured to record information onto the Blue-ray disc; and a second beam splitter configured to split the second light beam from the second laser light source into a signal beam and a reference beam; wherein the third light beam and the reference beam travel along a same optical path, at least from the first beam splitter or the second beam splitter to the holographic storage medium, and the third light beam and the reference beam are irradiated to the holographic storage medium in a state of parallel beam.