Laser diode power control apparatus in an optical drive

摘要

The invention related to a laser diode power control apparatus in an optical drive capable of driving an optical media by high-speed, which uses a fine-tuning pulse to provide a recording pulse type suitable for high-density optical media. The laser diode power control apparatus includes a pulse generating unit, a control unit, and a transmitting unit. The pulse generating unit generates a recording pulse for each channel. The control unit controls the pulse generating unit by determining whether to apply a fine-tuning pulse to the recording pulse for each channel based on the type of the optical medium and the driving speed of the optical drive for the optical medium. The transmitting unit transmits a power level for each channel according to the recording pulse output from the pulse generating unit.