System for testing optical fibers

Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor

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G01T 120

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042925371

ABSTRACT:
A system for nondestructively determining the attenuation coefficient, .alpha.(.lambda.), of low-loss optical fiber wave guides. Cerenkov light pulses are generated at a plurality of locations in the fiber by a beam of charged particles. The transit times of selected spectral components and their intensities are utilized to unfold the .alpha.(.lambda.) values over the measured spectrum.

REFERENCES:
patent: 3619624 (1971-11-01), Sorenson
A Technique for Measuring Optical Fiber Transmission Using the Time Dispersion of Cerenkov Radiation, Franks et al., Journal of Applied Physics, vol. 48, No. 9, Sep. 1977, pp. 3639-3641.

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