Coated optical fiber

Details Coated optical fiber Coated optical fiber

1997-07-29

1998-11-10

Ullah, Akm E.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

G02B 602, G02B 622

Patent

active

058356568

ABSTRACT:
A coated optical fiber comprising a light-transmitting fiber and a resin coating layer disposed on the outer periphery of the light-transmitting fiber is formed, an external flaw is imparted to the surface of the resin coating layer while running the coated optical fiber, and then the coated optical fiber is subjected to the measurement of a tensile breaking strength thereof. At this time, the fiber having a strength retention ratio R.sub.S =S.sub.A /S.sub.0 of 0.98 or more, wherein S.sub.A is the median value of the tensile breaking strength after the provision of the external flaw, and S.sub.0 is the median value of the tensile breaking strength before the provision of the external flaw, is selected as a non-defective product.

REFERENCES:
patent: 4473599 (1984-09-01), Elion
patent: 4711338 (1987-12-01), Winter et al.
patent: 4801186 (1989-01-01), Wastasmuma et al.
patent: 5140661 (1992-08-01), Kerek
patent: 5502145 (1996-03-01), Szum
patent: 5595820 (1997-01-01), Szum
English Abstract for JP 4-338126.
English Abstract for JP 5-310439.

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