Laser beam output apparatus
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United States of America Patent
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Sep 19, 2023
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N/A
app pub date -
Nov 3, 2021
filing date -
Nov 27, 2020
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Abstract
According to the present invention, a pulsed laser output section outputs a laser beam having a predetermined wavelength as first pulses. An optical path determining section receives the first pulses and determines one or more among two or more optical paths for each of the first pulses for output. A wavelength changing section receives light beams travelling, respectively, through the two or more optical paths and, when the power of the traveling light beams exceeds a threshold value, changes the light beams to have their respective different wavelengths for output. A multiplexer multiplexes outputs from the wavelength changing section. The optical path determining section allows for change in the power ratio between a first power of the light beam traveling through one of two among the two or more optical paths and a second power of the light beam traveling through the other of the two optical paths.
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