Patent ID: 8395983
Filing Date: 2013-03-12
Classification: G11B

Abstract:
1. An optical pickup apparatus configured to prevent noise caused by return light by superposing a high-frequency signal, generated from a high-frequency signal generation circuit, on a driving signal to be supplied to a laser diode, the optical pickup apparatus comprising: a high-frequency superimposition integrated circuit including the high-frequency signal generation circuit; first wiring connected between an anode of the laser diode and the high-frequency superimposition integrated circuit; and second wiring connected between a cathode of the laser diode and the high-frequency superimposition integrated circuit, the laser diode and the high-frequency superimposition integrated circuit mounted on a circuit board, the first wiring and the second wiring arranged, for the most part, in a region where the laser diode is arranged, the second wiring configured to pass through between an anode terminal of the laser diode and an anode terminal of a monitor diode.