Waveguide Structure for Optical Coupling
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United States of America Patent
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Sep 26, 2017
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Feb 12, 2016
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Abstract
A waveguide structure for optical coupling, including a first waveguide embedded in a first cladding, and at least two second waveguides distanced vertically from the first waveguide and embedded in a second cladding provided on the first cladding. The first waveguide and the at least two second waveguides each have an at least partly tapered end section in a coupling region of the waveguide structure, the end section of the first waveguide being tapered oppositely to end sections of the at least two second waveguides. The first waveguide is arranged laterally between the at least two second waveguides in the coupling region.
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