MULTI-CORE OPTICAL FIBER
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United States of America Patent
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Mar 28, 2024
app pub date -
Jan 24, 2022
filing date -
Jan 26, 2021
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Abstract
A multi-core optical fiber comprises at least two (2) helical cores. When the multi-core optical fiber is bent, such that it has a bend length (L) and a bend radius (R), each core experiences a different strain, thereby resulting in an effective optical length difference (δl) between the cores. In the present disclosure, the helical cores have a pitch (P) that reduces δl/L to a value that is less than 5·10−6 (i.e., δl/L<5·10−6).
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