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    High-Energy Pulsed Laser Beam Profiling System

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    Recent high-energy laser beam profile data have shown the need for complete shot-by-shot spatial information in the quantitative assessment of repetitively-pulsed optics damage results. A system designed for spatial profiling of repetitively-pulsed beams is described here. The configuration provides for data processing from a 16 × 16 pyroelectric array (Spiricon), through analog-to-digital conversion (Datel), frame grabbing, and computer storage and display (Hewlett-Packard). Design solutions are illustrated for the electromagnetic noise problems associated with high-energy laser environments. The system has been demonstrated in the high-current environment of a large flashlamp-initiated pulsed chemical laser. The system is designed for use in the measurement of both the spatial profile incident on an optical component, and the transmissive wavefront distortion introduced by the component, under high power loading.


    electromagnetic noise, fiber optics, profile data processing, pyroelectric array, repetitively-pulsed diagnostics, two-dimensional array, wavefront distortion

    Author Information:

    Nichols, DB
    Boeing Aerospace, Seattle, WA

    Texeira, PD
    Boeing Aerospace, Seattle, WA

    Donovan, TM
    Boeing Aerospace, Seattle, WA

    Committee/Subcommittee: E13.09

    DOI: 10.1520/STP18538S