Wavelength selective transfer of optical energy
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United States of America Patent
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Oct 4, 2022
Grant Date -
Oct 10, 2019
app pub date -
Jun 18, 2019
filing date -
Dec 19, 2016
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Abstract
An all fiber wavelength selective coupler provides wavelength selective transfer of optical energy between two or more separated waveguides. The coupler includes signal cores that are separated enough that they can be fusion spliced to standard fibers as lead-in and lead-out pigtails. A bridge between the signal cores facilitates transfer of the optical energy through a process of evanescent coupling. In one example, the bridge is formed of a series of graded index cores.
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