Measurement of optical attenuation along the length of bent opti

Details Measurement of optical attenuation along the length of bent opti Measurement of optical attenuation along the length of bent opti

1989-10-05

1991-02-26

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 731, H01J 516, G01N 2100

Patent

active

049964208

ABSTRACT:
Optical signal attenuation due to bends in an optical fiber (12) is measured by bending a segment of the optical fiber (12) into the shape of interest, measuring the attenuation in that segment, propagating the bent region along the length of the optical fiber (12), and repeating the measurement. The attenuation as a function of the position of the bent segment along the length of the optical fiber (12) is thereby measured. The approach is of particular interest in determining peel point bending loses along the length of the optical fiber (12) to identify areas of signal transmission.

REFERENCES:
patent: 4081258 (1978-03-01), Goell et al.
patent: 4618212 (1986-10-01), Ludington et al.
patent: 4659215 (1987-04-01), Sumida et al.
patent: 4714343 (1987-12-01), Ide
patent: 4775233 (1988-10-01), Kaneshi et al.

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