Patent ID: 8270270
Filing Date: 2012-09-18
Classification: G01J,H01S

Abstract:
1. An on-line output power calibrating method for adjusting laser power of an optical pick-up, wherein the optical pick-up comprises an optical power regulator and an optical power detector, the on-line output power calibrating method comprising the steps of: performing a recording pre-process; providing a focus offset value and/or a tilt offset value to the optical pick-up; performing a close loop output power calibration; performing an open loop output power calibration, comprising: performing an optimum power calibration according to the updated setting value; wherein all of the above-mentioned steps of the on-line output power calibrating method are performed on-line when a recorder is configured by a user to perform a recording process, and wherein the close loop output power calibration is different from the open loop output power calibration.