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Focus optimization method and materials processing equipment of fiber laser, method of measuring the focus change of the fiber laser
Focus optimization method and materials processing equipment of fiber laser, method of measuring the focus change of the fiber laser
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机译:光纤激光器的焦点优化方法和材料加工设备,测量光纤激光器的焦点变化的方法
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摘要
A method of optimising the focus of a fibre laser is described, which comprises positioning the output of a fibre laser relative to a workpiece; measuring at least a portion of back reflected radiation from the workpiece (step 52); determining an integral of this; changing the relative position of the output and the workpiece one or more times (step 54,56), each time determining an integral of values for the back-reflection, and using the integrals to determine optimum focus.
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