Stress concentrations in an optical fiber ribbon to facilitate s

Details Stress concentrations in an optical fiber ribbon to facilitate s Stress concentrations in an optical fiber ribbon to facilitate s

1998-02-09

1999-11-09

Palmer, Phan T. H.

Optical waveguides

Optical transmission cable

Ribbon cable

385100, 385112, 385114, 385113, 264 124, 264 125, 264 128, 425385, 425394, G02B 644

Patent

active

059829680

ABSTRACT:
In an optical fiber ribbon including a plurality of optical fibers arranged in a common plane in generally side-by-side relationship and surrounded by a layer of matrix material, at least one stress concentration is formed in the matrix material surrounding the optical fiber ribbon. The stress concentration extends along at least a portion of the ribbon parallel to a longitudinal axis of the ribbon and concentrates stress applied to the ribbon such that the matrix material easily separates at the stress concentration. Each stress concentration may be formed directly in the matrix material during its application on the optical fibers, or an abrasive surface may be applied to the fiber to form the stress concentration. Stress concentrations may formed on at least one extreme edge of the optical fiber ribbon such that the entire matrix material may be easily removed from a section of optical fiber ribbon at a desired ribbon access location. Alternatively, stress concentrations may be formed on at least one of the major surfaces of the optical fiber ribbon at designated locations where it is desired for the optical fiber ribbon to be separated into smaller groups or sub-ribbons.

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Meeting the Demands of the Local Loop with Improved Ribbon Fiber Midspan Access, Beasley et al., Sumitomo Electric Fiber Optics Corp., pp. 401-408, NFOEC 1994 Proceedings, 1994.

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