Methods for testing optical fibres

Details Methods for testing optical fibres Methods for testing optical fibres

1979-03-20

1981-01-06

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

356237, G01N 2188

Patent

active

042433207

ABSTRACT:
The invention uses the phenomenon of self-coupling by which light emitted from, and reflected back into, a laser produces self-coupling with consequent change in lasing activity. The invention proposes using the laser as a detector by inducing the self-coupling and monitoring the change in lasing activity. The invention enables fibre length, and the position of a reflective discontinuity in a fibre to be determined without the sophisticated and costly equipment required by current optical time domain reflectometry techniques.

REFERENCES:
patent: 4012149 (1977-03-01), Bouillie et al.
patent: 4070118 (1978-01-01), Maslowski et al.

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