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Proceedings Paper

Micromachining with high-repetition-rate femtosecond laser sources
Author(s): E. Baubeau; Ronan Le Harzic; Christian Jonin; E. Audouard; Stephane Mottin; M. Courbon; Pierre Laporte
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Paper 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.

Paper Details

Date Published: 6 November 2000
PDF: 3 pages
Proc. SPIE 4088, First International Symposium on Laser Precision Microfabrication, (6 November 2000); doi: 10.1117/12.405688
Show Author Affiliations
E. Baubeau, Univ. Jean Monnet St.-Etienne (France)
Ronan Le Harzic, Univ. Jean Monnet St.-Etienne (France)
Christian Jonin, Univ. Jean Monnet St.-Etienne (France)
E. Audouard, Univ. Jean Monnet St.-Etienne (France)
Stephane Mottin, Univ. Jean Monnet St.-Etienne (France)
M. Courbon, Univ. Jean Monnet St.-Etienne (France)
Pierre Laporte, Univ. Jean Monnet St.-Etienne (France)

Published in SPIE Proceedings Vol. 4088:
First International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Koji Sugioka; Thomas W. Sigmon, Editor(s)

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