Multi-core fiber
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United States of America Patent
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Aug 26, 2008
Grant Date -
May 8, 2008
app pub date -
Nov 5, 2007
filing date -
Nov 6, 2006
priority date (Note) -
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Abstract
A multi-core optical fiber apparatus is disclosed. The multi-core optical fiber apparatus includes a cladding comprising quartz and a plurality of cores embedded in the cladding. Each of the cores has a diameter (D) ranging from 1.3 .mu.m to 2.0 .mu.m, a numerical aperture (NA) from 0.35 to 0.45 and a refractive index profile factor (.alpha.) from 2.0 to 4.0. A center of each of the cores has a germanium content of 20 wt % to 30 wt %. An interval between adjacent cores is 3.0 .mu.m or more.
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