Reflected optical power fiber test system

Details Reflected optical power fiber test system Reflected optical power fiber test system

1991-11-18

1993-10-05

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

25022711, G01N 2188

Patent

active

052510018

ABSTRACT:
A system for testing an optical fiber used in communications including a light source connectable to provide light to one end of a fiber under test, an optical power detector connectable to receive light from the same end of the fiber under test, a reflector at the other end of the fiber under test, and monitoring means operatively connected to the light source and detector to make a baseline measurement of optical power reflected by the reflector and subsequent measurements of optical power reflected by the reflector and compare the subsequent measurements with the baseline measurement to determine if there has been a change in optical power reflected by the reflector, the baseline measurement and the subsequent measurements involving no more than a single pulse of light from the light source.

REFERENCES:
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patent: 4623788 (1986-11-01), Kern et al.
patent: 4716288 (1987-12-01), Doi
patent: 4838690 (1989-06-01), Buckland et al.
patent: 4883954 (1989-11-01), Esser et al.
patent: 4899045 (1990-02-01), Kramer
Takasugi, H., et al., "Design and Evaluation of Automatic Optical Fiber Operation Support System", International Wire & Cable Symposium Proceedings 1990, pp. 623-629.
Shinopoulos, G., et al., "Monitoring Systems for Fiber Optic Cable Plant", Fotec, Inc., 1991 National Fiber Optic Engineers Conference, vol. 2, pp. 81-86.
Koyamada, yahei, et al., "Basic Concepts of Fiber Optic Subscriber Loop Operation Systems", 1990 IEEE, pp. 1540-1544.

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