Optical time domain reflectometry

G - Physics – 01 – M

Patent

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G01M 11/00 (2006.01)

Patent

CA 2058957

Apparatus and a method for increasing the optical measurement range in optical time domain reflectometers in which a fibre laser amplifier is used to amplify the optical time domain reflectometer pulses launched into a waweguide. This apparatus and method have particular usefulness for branched local networks. The signal returning to the optical time domain reflectometer is amplified as well as the outbound signal,

On a mis au point un appareil et un procédé d'augmentation de la plage de mesure optique dans des réflectomètres optiques à domaine temps, utilisant un amplificateur à laser à fibres pour amplifier les impulsions du réflectométre optique à domaine temps, lancées dans un guide d'ondes. L'appareil et le procédé présentent une utilité particulière pour des réseaux locaux ramifiés. Le signal revenant dans le réflectomètre optique à domaine temps est amplifié, ainsi que le signal de limite extérieure.

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