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Beam Profiling in a Job Shop: Industrial CO2 Pulsed Laser

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Beam Profiling in a Job Shop: Industrial CO2 Pulsed Laser

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In this laser, a significant amount of the energy is far out in the wings of the beam. This particular laser was used to cut steel, and it was found that, with time, there were variations in the quality of the cut. Nevertheless, the manager had been making acrylic mode burns, which appeared to be as high quality as the other lasers. It was found that when observing the beam using a real-time beam diagnostic tool the mode was changing quite rapidly. During rapid changes, the acrylic mode burns would create an average of the beam which appeared quite Gaussian, whereas individual pulses were highly structured. It was discovered that these variations over time were the cause of the ragged edges cut by this laser.

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