Pulse shaping for microcutting applications of metals with fiber lasers

Klaus F. Kleine; Kenneth G. Watkins

doi:10.1117/12.541435

15 July 2004 Pulse shaping for microcutting applications of metals with fiber lasers

Klaus F. Kleine, Kenneth G. Watkins

Proceedings Volume 5339, Photon Processing in Microelectronics and Photonics III; (2004) https://doi.org/10.1117/12.541435
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States

Abstract

High power single mode fiber lasers are an excellent tool for micro cutting applications. In order to manage the heat input into the material most micro cutting applications require pulsed operation of the laser. Temporal pulse shaping is a proven and enabling technology for many laser welding applications with flash lamp pumped lasers where typical pulse lengths are in the order of 0.1 to 10 ms. The excellent controllability of diode pumped fiber lasers enables pulse shaping during the cutting process with laser pulse length typically less then 0.1 ms. For laser micro cutting applications a small kerf width with small HAZ and good surface finish define the quality of the process. This paper shows the influence of the laser pulse shape on the cutting quality in stainless steel with diode pumped fiber lasers.

Citation Download Citation

Klaus F. Kleine and Kenneth G. Watkins "Pulse shaping for microcutting applications of metals with fiber lasers", Proc. SPIE 5339, Photon Processing in Microelectronics and Photonics III, (15 July 2004); https://doi.org/10.1117/12.541435

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