Diffractive scanning mechanism for laser marker |
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Authors: | Edward F Plinski Jerzy S Witkowski Krzysztof M Abramski |
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Institution: | Wroclaw University of Technology, Institute of Telecommunications and Acoustics, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland |
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Abstract: | We present a new idea of marking based on spectral properties of CO2 laser radiation. The idea has been illustrated on RF excited waveguide CO2 lasers in different configurations: single channel, multi-waveguide and slab-waveguide ones. The pulse operation of the laser has been considered as well. The advantage of the presented diffraction marker is avoiding complicated and fallible mechanical elements. The only executive elements of the marker are a diffraction grating and a piezoceramic transducer. It has been shown that the slab-waveguide configuration of the RF excited CO2 laser equipped with an unstable resonator is the most promising configuration for application to the diffraction marker. |
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Keywords: | Laser marker Diffraction CO2 lasers |
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