Micromachining with high-repetition-rate femtosecond laser sources

E. Baubeau; Ronan Le Harzic; Christian Jonin; E. Audouard; Stephane Mottin; M. Courbon; Pierre Laporte

doi:10.1117/12.405688

6 November 2000 Micromachining with high-repetition-rate femtosecond laser sources

E. Baubeau, Ronan Le Harzic, Christian Jonin, E. Audouard, Stephane Mottin, M. Courbon, Pierre Laporte

Proceedings Volume 4088, First International Symposium on Laser Precision Microfabrication; (2000) https://doi.org/10.1117/12.405688
Event: First International Symposium on Laser Precision Microfabrication (LPM2000), 2000, Omiya, Saitama, Japan

Abstract

Ultrashort duration laser sources are considered as a promising tool for new micromachining applications: precise microdrilling and microcutting on various materials. As an illustration of the non thermal micromachining, we also paid attention to precious wood. Cutting is achieved without burning, and the cut surface remains undamaged. However, until now, only low-average-power sources are available. An average power level of 10 W appears to be the lowest limit for this type of laser to really become industrial. We are presently developing such a source based on the use of a 15kHz, 100W copper HyBrID laser as a pump laser. Thus, we intend to reach in a near future a typical drilling rate of one mm per second, for instance, in stainless steel compared with a 50 microns per second drilling rate obtained with presently available kHz and low-average-power sources. Micromachining obtained with out a 1 kHz source will be presented and discussed.

Citation Download Citation

E. Baubeau, Ronan Le Harzic, Christian Jonin, E. Audouard, Stephane Mottin, M. Courbon, and Pierre Laporte "Micromachining with high-repetition-rate femtosecond laser sources", Proc. SPIE 4088, First International Symposium on Laser Precision Microfabrication, (6 November 2000); https://doi.org/10.1117/12.405688

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