CHANNEL WAVEGUIDES WITH BEND COMPENSATION FOR LOW-LOSS OPTICAL TRANSMISSION
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United States of America Patent
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Apr 2, 2020
app pub date -
Sep 28, 2018
filing date -
Sep 28, 2018
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Abstract
The channel waveguides disclosed herein have bend compensation in the form of at least one compensated bend section. The channel waveguides are formed in a glass-based substrate having a glass-based matrix. The channel waveguide has an waveguide IOX region with a straight section and a bend section. The waveguide IOX region at the bend section is superimposed with a quasi-linear modifying IOX region to form a compensated bend IOX region that defines the compensated bend section. The compensated bend section has a reduced amount of optical loss as compared to if the compensated bend section had a refractive index profile that was the same as the straight section. Methods of forming the compensated bend sections for the channel waveguides are also disclosed.
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