Optical fiber provided with reliable coating layers
First Claim
1. An optical fiber comprising a glass optical fiber consisting of a core and a cladding, a primary coating layer overlaid on said glass optical fiber, and a secondary coating layer provided on said primary coating layer, characterized in that the relaxation modulus of said secondary coating layer is 400 MPa or less.
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Accused Products
Abstract
An optical fiber is provided, which is unlikely to cause interlayer delamination between a glass optical fiber and a primary coating layer even when it is immersed in water. The optical fiber of the present invention includes a glass optical fiber 1 consisting of a core and a cladding, a primary coating layer 2 overlaid on the glass optical fiber, and a secondary coating layer 3 overlaid on the primary coating layer, wherein the relaxation modulus of the secondary coating layer is set at 400 MPa or less.
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Citations
2 Claims
- 1. An optical fiber comprising a glass optical fiber consisting of a core and a cladding, a primary coating layer overlaid on said glass optical fiber, and a secondary coating layer provided on said primary coating layer, characterized in that the relaxation modulus of said secondary coating layer is 400 MPa or less.
Specification