Method of imparting surplus length to optical fibers in a protec

Details Method of imparting surplus length to optical fibers in a protec Method of imparting surplus length to optical fibers in a protec

1997-07-31

1999-01-05

Ngo, Hung N.

Optical waveguides

Miscellaneous

29860, G02B 636

Patent

active

058570551

ABSTRACT:
The optical fibers are enclosed in a protective metal tube in such manner as to impart surplus length to them, the tube being shaped from an initial strip, then laser welded, and optionally swaged as it advances in line. The method of obtaining the surplus length of a predetermined value consists in subjecting the tube as driven to subsequent stretching of a predetermined value by means of a capstan working at constant torque, thereby causing the fibers to advance in the welded tube, then in relaxing the stretched tube. Application to a line for enclosing optical fibers in a protective tube.

REFERENCES:
patent: 5210391 (1993-05-01), Yoshie et al.
patent: 5231260 (1993-07-01), Yoshie et al.

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