I am working with a variable power laser system that has a wavelength of 0.8μm – 1.1 μm. The issue is the laser beam welds or cuts the test sample but continues on afterwards. A stainless steel planish wheel has been experimented with to stop the laser beam and support the test material that is being welded together. However, this only lasts 5 or 6 welds until it needs to be replaced. A proper life cycle for the material should be upwards of 1,000 weld cycles. Is there a proper way to properly diffuse the laser beam reducing damage below the test sample?
Diffusing a Laser beam
David Wisniewski
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