OPTICAL COMBINER AND LASER APPARATUS
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United States of America Patent
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Issued Date -
Jun 29, 2023
app pub date -
Feb 19, 2021
filing date -
May 26, 2020
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Abstract
An optical combiner includes: first optical input portions each including a first optical input waveguide; and an optical output portion to which the first optical input portions are connected and that includes a first core that allows light to propagate therethrough, and a cladding layer disposed outside of the first core and that has a refractive index lower than a refractive index of the first core. The first optical input portions are connected to a connection end face of the optical output portion such that the first optical input waveguide of at least one of the first optical input portions is optically coupled to the first core of the optical output portion.
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