Method for connecting multi-core fiber, multi-core fiber, and method for manufacturing multi-core fiber
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United States of America Patent
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Jan 10, 2017
Grant Date -
Feb 26, 2015
app pub date -
Aug 31, 2014
filing date -
Aug 1, 2011
priority date (Note) -
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Abstract
A multicore fiber 1 includes a plurality of cores 3 disposed at predetermined intervals and surrounded by a cladding 5. The multicore fiber 1 also includes a marker 7 formed apart from the cores 3. The refractive index of the marker 7 is different from those of the cores 3 and the cladding 5. For example, the marker 7 may be made of a material having lower refractive index than that of the cladding 5. In this case, for example, the cores 3 may be made of germanium-doped quartz. The cladding 5 may be made of pure quartz. The marker 7 may be made of fluorine-doped quartz. Further, the marker 7 may be an empty hole.
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