High-energy laser semi-integrating-sphere array attenuator
A semi-integrating sphere and high-energy laser technology, applied in the field of array attenuators, can solve problems such as large differences in incident laser absorption coefficient, limited application range, difficult parameter measurement, etc., to ensure consistency, ensure installation accuracy, and improve surface reflection rate effect
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[0021] like figure 1 As shown, a large-angle sampling cone hole 4 is processed on the front panel 1, a hemispherical cavity 3 and a laser exit hole 5 are processed on the rear panel 2, and the two panels are stacked together so that the corresponding large-angle sampling cone hole 4 and the hemispherical cavity 3 are spliced together to form a semi-integrating sphere cavity, and the large-angle sampling cone hole 4 and the laser exit hole 5 are respectively located on both sides of the hemispherical cavity 3 . Laser along the test figure 1 The direction of the middle arrow is coupled into the hemispherical cavity 3 from the large-angle sampling cone hole 4. After repeated absorption and reflection in the cavity, only a small part of the light is finally emitted from the laser exit hole 5, realizing the attenuation of the strong laser power density . Due to the adoption of the large-angle sampling taper hole 4 structure, the attenuator can meet the oblique incidence of lase...
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