Optical information recording method and apparatus using the same

An optical information recording apparatus, comprising:

• a spatial beam modulator to modulate laser light spatially to generate an information beam carrying information, the laser light being emitted from a light source;
• an optical component to focus the information beam on an optical information recording medium including an information recording layer in order to irradiate the optical information recording medium with a reference beam and the information beam so that the reference beam and the information beam intersect with each other on the information recording layer, the information recording layer being capable of recording information as a hologram due to interference fringes generated by interference between the information beam and the reference beam;
• a drive unit to rotate the optical information recording medium or the optical component;
• and
• a control unit to perform angle-multiplex recording of the information on the optical information recording medium by controlling the light source to emit the laser light while driving the optical information recording medium or the optical component so that a relative angle among the information beam, the reference beam and the optical information recording medium are changed,
• wherein
• the control unit records the same piece of management information at two or more relative angles having an angle interval smaller than twice at least a first null angle;
• and the management information is used when reading out user information.