Arrangement for locating faults in an optical information transm

Details Arrangement for locating faults in an optical information transm Arrangement for locating faults in an optical information transm

1983-07-05

1987-04-28

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

455601, 455606, G01N 2188, H04B 900

Patent

active

046609733

ABSTRACT:
In order to locate faults in an optical transmission system, the optical waveguide in the forward transmission path of a repeater is coupled by a beam splitter to an optical waveguide loop at the output of an amplifier. The dividing ratio of the beam splitter is based on the sensitivity of the amplifier in the return transmission path of the repeater. In the return direction the optical waveguide loop is connectable instead of the optical waveguide of the return transmission path.

REFERENCES:
patent: 4300239 (1981-11-01), Wakabayashi et al.
patent: 4313224 (1982-01-01), Wakabayashi et al.

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