Patent ID: 9719776
Date: 2017-08-01
CPC Classifications: B23K,G01B

Claim:
1. A system for processing a workpiece, the system comprising: a wavelength beam combining (WBC) emitter for emitting a multi-wavelength output beam comprising optical radiation having a plurality of wavelengths; a movable surface reflective to all of the wavelengths in the multi-wavelength output beam; a photodetector; a beamsplitter for (i) diverting a portion of the multi-wavelength output beam to the movable reflective surface and (ii) diverting a portion of a reflection of the multi-wavelength output beam from a surface of the workpiece to the photodetector, the photodetector being aligned with the movable reflective surface to receive therefrom a reflection of the diverted portion of the multi-wavelength output beam; a database storing parameters relating process types and material compositions to output-beam properties; and a controller, coupled to the WBC emitter device and the photodetector, for (i) computing a height or depth of a feature on the surface of the workpiece based at least in part on a signal from photodetector and (ii) controlling a property of the multi-wavelength output beam, in accordance with one or more parameters in the database, to process the surface of the workpiece to thereby form a feature in or on the surface of the workpiece.