Low attenuation fiber with stress relieving layer and a method of making such

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United States of America Patent

PATENT NO 9778413
SERIAL NO

15586434

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Abstract

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A single mode optical fiber having a core made from silica and less than or equal to about 11 weight % germania and having a maximum relative refractive index Δ1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index Δ2MIN, a first outer cladding surrounding the inner cladding and a second outer cladding surrounding the first outer cladding. The viscosity at 1650° C. of the second outer cladding minus the viscosity at 1650° C. of the first outer cladding is greater than 0.1e7 Poise, and Δ1MAX>Δ2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The first outer cladding has a maximum relative refractive index Δ3MAX, and Δ3MAX>Δ2MIN.

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Patent Owner(s)

  • CORNING INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bookbinder, Dana Craig Corning, US 342 5392
Li, Ming-Jun Horseheads, US 366 5203
Tandon, Pushkar Painted Post, US 294 2703

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