Stabilization of CO2 laser short-pulse oscillation by tickle pulse for dot processing

Daisaku Tokita; Noriyo Sakurada; Yoshio Ishii; Yuzuru Kubota; Kazuhiro Watanabe

doi:10.1117/12.611163

23 March 2005 Stabilization of CO₂ laser short-pulse oscillation by tickle pulse for dot processing

Daisaku Tokita, Noriyo Sakurada, Yoshio Ishii, Yuzuru Kubota, Kazuhiro Watanabe

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611163
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

Image drawing using a laser system has been attempted by Segmented Pixel Drawing (SPD) method and Laser Plastic Coloring (LPC) method in our laboratory. Laser dot processing by a short pulse oscillation of a CO₂ laser is used for these laser methods. Stable short pulse oscillation is required for an accurate image drawing. That oscillation has a tendency to be unstable because of its long oscillation interval. A tickle pulse is known as one of a technique which is conventionally used for a continuous pulse oscillation of a CO₂ laser in order to make rising rate of laser oscillation quick. In this study, this tickle pulse has been improved and applied to the short pulse oscillation in order to stable short pulse oscillation and high accurate laser dot processing. In the result, processed dots are appeared bigger with less variation in their sizes with the improved tickle pulse case compared with the conventional case. Short pulse oscillation is stabilized by these improved tickle pulse. Reproducibility and accuracy of the SPD method and LPC method might be realized by this stabilized dot processing.

Citation Download Citation

Daisaku Tokita, Noriyo Sakurada, Yoshio Ishii, Yuzuru Kubota, and Kazuhiro Watanabe "Stabilization of CO₂ laser short-pulse oscillation by tickle pulse for dot processing", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611163

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KEYWORDS

Pulsed laser operation

Carbon dioxide lasers

Laser processing

Laser stabilization

Image segmentation

Gas lasers

Laser systems engineering

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