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Updated: Jun 16, 2026

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Beam Diagnostics for High Energy Pulsed CO(2) Lasers.

R W O'Neil, H Kleiman, L C Marquet

    Applied Optics
    |February 4, 2010
    PubMed
    Summary

    Researchers developed methods to sample and attenuate high energy carbon dioxide (CO2) pulsed laser beams. These techniques enable accurate measurement of laser focal distributions, demonstrating near diffraction-limited performance for large lasers.

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    Area of Science:

    • Physics
    • Optics
    • Laser Technology

    Background:

    • High energy pulsed lasers require precise measurement techniques.
    • Existing methods may be disruptive or lack quantitative accuracy.

    Purpose of the Study:

    • To develop reliable sampling and attenuation procedures for high energy CO2 pulsed laser beams.
    • To establish a non-disruptive method for scanning time-integrated focal distributions.
    • To enable quantitative measurement of laser beam characteristics.

    Main Methods:

    • Utilized coarse transmission gratings for sampling.
    • Employed diffuse scatter from specular metal mirrors for attenuation.
    • Developed a single-shot, non-disruptive scanning technique.
    • Implemented a multiple burn pattern method for quantitative analysis.

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    Main Results:

    • Demonstrated reliable procedures for sampling and attenuation of high energy CO2 pulsed lasers.
    • Successfully scanned time-integrated focal distributions non-disruptively.
    • Achieved quantitative measurements of integrated distributions using the burn pattern technique.
    • Obtained data indicating near diffraction-limited capability.

    Conclusions:

    • The developed methods are effective for characterizing high energy pulsed lasers.
    • These techniques are suitable for large e-beam lasers with unstable resonators.
    • The findings support the use of these procedures in laser research and development.