Patent ID: 8270277

Claim:
An optical disk device for recording data on an optical disk by driving a laser light source with a driving current superimposed with a high-frequency current, comprising: an optical pickup which applies a laser light from the laser light source onto the optical disk and detects a feedback light from the optical disk; a signal processor circuit which processes a detection signal supplied from the optical pickup; and a controller which controls operations of the whole device, the controller performing the operations of: disabling tracking servo and establishing conditions for reproducing a signal from a predetermined region of the optical disk when adjusting the high-frequency current superimposed on the driving current for the laser light source; controlling the optical pickup to superimpose the high-frequency current varied in amplitude on the driving current for the laser light source and enabling the signal processor circuit to generate a tracking error signal; determining an amplitude of the high-frequency current that provides an optimum quality of the generated tracking error signal; and setting the determined amplitude of the high-frequency current as that of the high-frequency current superimposed on the driving current for the laser light source when recording data on the optical disk.