Multi-wavelength laser beam detector with refractive element
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United States of America Patent
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Aug 26, 1997
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app pub date -
Feb 9, 1996
filing date -
Feb 9, 1996
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Abstract
A detector system for providing a plurality of output beams for monitoring the output beam of a laser system. The detector system includes a refractive element having a pair of opposing spaced-apart faces. The laser beam enters the refractive element where it undergoes multiple internal reflections off of the faces. A portion of the beam is transmitted out of the refractive element at each of the reflections to form a plurality of increasingly attenuated output beams having different power intensities from each other. A plurality of detectors are positioned for measuring the different beam characteristics of the plurality of attenuated output beams, which correspond to the beam characteristics of the laser output beam.
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