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High-performance laser device with exactly correctable laser power
High-performance laser device with exactly correctable laser power
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机译：具有可精确校正激光功率的高性能激光设备
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摘要
A method of correcting laser power output of a laser unit (10) emitting a laser beam by means of the excitation energy supplied by a laser power supply (14), the method comprising the steps of: generating a laser power output command in dependence upon a predetermined program or user input; Generating an order for the excitation energy, which is transmitted to the laser power supply (14), depending on the command for the laser power output; Measuring the laser power output achieved by the excitation energy that the laser power supply (14) outputs; and determining a correction coefficient such that the desired power output included in the laser power output command matches the measured laser power output, characterized by the steps of: performing a preparatory laser power output for a predetermined period of time at a number of predetermined conditions for the preliminary one Laser power output, wherein a pre-laser power output command is different from a laser power output command for determining the correction coefficient; after the preliminary laser power output, outputting a laser power output for correction purposes over a period of time according to a laser power output condition for determining the correction coefficient; and determining the correction coefficient from a measurement result of the laser power output for correction purposes, wherein the conditions for the preparatory laser power output include an instruction by which the laser sequentially transitions from a high laser power output to a low laser power output, but only when the laser power output is smaller than a predetermined value for correction purposes.
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