Optical pickup and disk drive unit

A disk drive apparatus comprising:

• a disk table turned upon a disk recording medium being placed thereon;
• and an optical pickup which is provided with a moving base moving in the radial direction of the disk recording medium placed on the disk table and which is provided with predetermined optical elements and optical components disposed in the moving base,
• the optical pickup comprising:
• a light emitting element for emitting a laser beam;
• a rise mirror including a main portion, having an inclined surface formed at a predetermined angle with respect to the optical axis of a laser beam emitted from the light emitting element, and a mirror portion formed on the inclined surface, for reflecting at least a part of the laser beam emitted from the light emitting element toward the disk recording medium;
• and
• a receiving optics for receiving the laser beam which is reflected at the rise mirror, with which the disk recording medium is subsequently irradiated, and which is then reflected at the disk recording medium,
• wherein the rise mirror has at least one unit of detecting means disposed therein for receiving a part of the laser beam emitted from the light emitting element, for detecting the output of the received laser beam, and for outputting a signal for controlling the output of the light emitting element in accordance with the detected result.