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Proceedings Paper

Neodymium Yttrium Aluminum Garnet (Nd:YAG) Laser Marking System
Author(s): Ronald L. Hansen
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Paper Abstract

A Nd:YAG laser-based microprocessor-controlled marking system has been developed for commercial use. It can mark a variety of metallic, semiconductor, plastic, and coated materials with letters, numbers, special symbols, and company logos. The alpha-numeric information is presented in a standard 5 by 7 dot matrix format, with continuously adjustable character height up to 7 mm. Programming features of the control system allow for either automatic or manual serializing, editing of messages during laser marking, "reverse-video" marking, among others. Depending upon the marked material or the required marking rate, either a CW pumped Q-Switched laser or a flash-pumped pulsed laser is used. Examples of marked materials are shown.

Paper Details

Date Published: 31 October 1980
PDF: 6 pages
Proc. SPIE 0247, Advances in Laser Engineering and Applications, (31 October 1980); doi: 10.1117/12.959374
Show Author Affiliations
Ronald L. Hansen, General Photonics Corporation (United States)

Published in SPIE Proceedings Vol. 0247:
Advances in Laser Engineering and Applications
Malcolm L. Stitch, Editor(s)

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