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US 7,689,084 B2Granted
Optical fiber and a method of making
AssigneeCorning Incorporated
InventorsXin Chen, Joohyun Koh, Ming-Jun Li, Anping Liu, Deborah Lynn Marlatt, Ji Wang
Life of this patent
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Abstract
According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n2, such that n1>n2; wherein the cladding includes B and F. Preferably the numerical aperture NA is at least 0.3.
Claims13
An optical fiber comprising:
- (i) a silica based core, said core having a core diameter greater than 80 μm, and index of refraction n1, and a numerical aperture NA≧0.24, at a 5% threshold;
- (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n2, such that n1>n2, wherein said cladding comprises B and F.
Dependencies are inferred from the claim text.