Acoustic beam splitter for infrared lasers |
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| Authors: | Nickel G. Goodfellow G. Terwilliger D. |
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| Affiliation: | Air Force Weapons Lab., Kirtland Air Force Base, NM, USA; |
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| Abstract: | A method for noninterference sampling of high-power CO2laser beams is described. The technique employs an ultrasonic diffraction grating generated in the air path across a laser beam. A very small fraction (sim10^{-7}) of the main beam is diffracted through a small angle (sim2deg) on either side. Profiles of Gaussian and "donut" modes from low-power CO2lasers were obtained with the acoustic beam splitter. |
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