Method and apparatus for cut-over of optical fibers

Details Method and apparatus for cut-over of optical fibers Method and apparatus for cut-over of optical fibers

1997-02-07

1998-11-03

Healy, Brian

Optical waveguides

With optical coupler

Input/output coupler

385 31, 385 38, 385 39, 385 44, 385 48, 385 88, 385136, 385137, G02B 626

Patent

active

058321527

ABSTRACT:
Optical signals that would otherwise transit a first fiber (12), but for a break therein, may be cut-over to a second fiber (16) by clamping the first fiber at first and second spaced locations thereon upstream and downstream, respectively, of the break. Clamping the first fiber creates a microbend at each of the first and second locations at which optical signals exit from, and may be injected into, respectively, the first fiber. The second fiber is likewise clamped at first and second spaced locations thereon to create a pair of microbends at which optical signals may be injected into, and extracted from the second fiber, respectively. Once the first and second fibers are clamped in this fashion, the optical signals extracted from the first fiber at the first location are coupled into the second fiber and then extracted therefrom for injection into the first fiber at the second location thereon.

REFERENCES:
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patent: 4810052 (1989-03-01), Fling
patent: 4822125 (1989-04-01), Beals et al.
patent: 4856864 (1989-08-01), Campbell et al.
patent: 5146521 (1992-09-01), Hartog
patent: 5343541 (1994-08-01), Uken et al.
Operating Manual, AT&T Model 936A Optical Fiber Identifer (No date of publication).

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