Coated optical fiber and optical fiber coating system including a hydrophilic primary coating
AssigneeCorning Incorporated
InventorsMichelle D. Fabian, Kevin R. McCarthy, Michael J. Winningham
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Abstract
The present invention provides optical fiber coating systems and coated optical fibers having hydrophilic primary coatings. According to one embodiment of the invention, a coated optical fiber includes an optical fiber having a core and a cladding; a hydrophilic primary coating encapsulating the optical fiber, the primary coating having a Young's modulus less than about 2 MPa; and a secondary coating encapsulating the primary coating, wherein the primary coating exhibits substantially no water bubble formation and substantially no delamination when the coated optical fiber is soaked in water at 23° C. for 30 days.
Claims23
A coated optical fiber comprising:
- an optical fiber having a core and a cladding;
- a hydrophilic primary coating encapsulating the optical fiber, the primary coating having a Young's modulus less than about 2 MPa;
- and
- a secondary coating encapsulating the primary coating,
- wherein the primary coating exhibits substantially no water bubble formation and substantially no delamination when the coated optical fiber is soaked in water at 23° C. for 30 days.
A coated optical fiber comprising:
- an optical fiber having a core and a cladding;
- a hydrophilic primary coating encapsulating the optical fiber, the primary coating having a Young's modulus less than about 2 MPa and an average water absorption of at least about 4%;
- and
- a secondary coating encapsulating the primary coating.
An optical fiber coating system comprising:
- a hydrophilic primary coating having a Young's modulus less than about 2 MPa;
- and
- a secondary coating,
- wherein the primary coating exhibits substantially no water bubble formation and substantially no delamination when an optical fiber coated with the coating system is soaked in water at 23° C. for 30 days.
An optical fiber coating system comprising:
- a hydrophilic primary coating having a Young's modulus less than about 2 MPa, and an average water absorption of at least about 4%;
- and
- a secondary coating.
Dependencies are inferred from the claim text.