| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for adjusting diffracted light disturbance of a disk drive light source. SOLUTION: This method for adjusting diffracted light disturbance of a disk drive light source is used for light emission variable adjustment of the laser diode light source of the disk drive. First, a rough adjustment is performed without a disk to obtain a light emission variable initial value of a laser light source of the disk drive. A fast resampling is performed between a power controller of the light source and a post-stage amplifier after a disk is loaded to operate with the light emission variable initial value, an influence value to a light emission variable of diffracted light is acquired when the disk of a laser light source exists, and it is fed to one compensator, proportional compensation and feedback calibration processing are performed to acquire a stable light emission variable affected by disk diffracted light. The stable light emission variable is recorded in a memory to be defined as a light emission control variable in a disk drive writing mode, thereby, diffracted light disturbance of laser to a disk drive state is adjusted. |
