Coated optical glass fiber
AssigneeLucent Technologies Inc.
InventorEphraim Suhir
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Abstract
An optical fiber having a multi-material coating and a fabrication method therefor are disclosed. The coating includes at least two portions adjacent in a longitudinal direction. Adjacent portions are comprised of different materials having different Young's moduli. The invention provides a multi-material coating for an optical fiber and coating fabrication method wherein the interfacial shearing stress for the multi-material coated fiber is less than the interfacial shearing stress for a substantially like fiber coated with only one of the materials found in the multi-material coating. Further disclosed is a telecommunications system and fabrication method, wherein the system comprises multi-material coated fibers having reduced interfacial shearing stress.
Claims22
A multi-material coated optical fiber, the coating having at least two portions adjacent in a longitudinal direction, wherein adjacent portions are comprised of different materials having different Young's moduli, wherein the interfacial shearing stress for the multi-material coated fiber is less than the interfacial shearing stress for a substantially like fiber coated with only one of the material of the multi-material coated fiber.
A method of fabricating a multi-material coated optical fiber, the coating comprising a plurality of materials, the method comprising the steps of:
- coating a mid-portion of the optical fiber with a first material;
- and
- coating a first end portion of the optical fiber adjacent to the mid-portion with a second material after coating the mid-portion;
- wherein the second material has a lower Young's modulus than that of the first material.
Dependencies are inferred from the claim text.