Beam parameter product (bpp) control by varying fiber-to-fiber angle
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United States of America Patent
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Sep 8, 2020
Grant Date -
Mar 30, 2017
app pub date -
Sep 26, 2016
filing date -
Sep 24, 2015
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Abstract
An apparatus includes a laser system that includes a first fiber having an output end and situated to propagate a first laser beam with a first beam parameter product (bpp) and a second fiber having an input end spliced to the output end of the first fiber at a fiber splice so as to receive the first laser beam and to form a second laser beam having a second bpp that is greater than the first bpp, wherein the output end of the first fiber and the input end of the second fiber are spliced at a tilt angle so as to increase the first bpp to the second bpp.
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