EDGE COUPLER AND WAVEGUIDE STRUCTURE
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United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Oct 22, 2024
filing date -
Oct 22, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
An edge coupler includes a substrate, a first cladding layer over the substrate, a core layer over the first cladding layer, and an ARC layer. The substrate has a first sidewall, the first cladding layer has a second sidewall aligned with the first sidewall, and the core layer has a third sidewall aligned with the second sidewall. The ARC layer lines the first sidewall, the second sidewall and the third sidewall. The ARC layer physically contacts and covers a surface of the substrate. A first height of the ARC layer varies along the surface of the substrate.
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