Fiber network monitoring

H - Electricity – 04 – B

Patent

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H04B 10/08 (2006.01)

Patent

CA 2723462

This specification describes technologies relating to optical fiber network monitoring. A monitoring system is provided. The monitoring system includes a fiber network including a plurality of branch fibers and a main station coupled to a main fiber of the fiber network to broadcast communications signals to a plurality of branch stations. The monitoring system includes a monitoring device configured to transmit a monitoring signal and detect reflected portions of the monitoring signal such that the received portions specifically identify a condition of specific branch fibers of the plurality of branch fibers and a plurality of filtering devices coupled to each respective branch fiber, each filtering device including a transmission window configured to pass a plurality of communication wavelengths and a distinct wavelength of the monitoring signal, where the distinct wavelength is not within the transmission window, and block the remaining wavelengths, where the distinct wavelength identifies the respective branch fiber.

Linvention concerne des technologies relatives à la surveillance de réseaux de fibres optiques. L'invention concerne plus précisément un système de surveillance. Le système de surveillance comprend un réseau de fibres contenant une pluralité de fibres de branche et une station principale couplée à une fibre principale du réseau de fibres dans le but de diffuser des signaux de communication vers une pluralité de stations de branche. Le système de surveillance comprend un dispositif de surveillance configuré pour transmettre un signal de surveillance et détecter des parties réfléchies du signal de surveillance de telle sorte que les parties reçues identifient de manière spécifique une condition de fibre de branche spécifique parmi la pluralité de fibres de branches et une pluralité de dispositifs de filtrage couplés à chaque fibre de branche respective, chaque dispositif de filtrage comprenant une fenêtre de transmission configurée pour laisser passer une pluralité de longueurs d'onde de communication et une longueur d'onde distincte du signal de surveillance, la longueur d'onde distincte n'étant pas comprise dans la fenêtre de transmission, et pour bloquer les longueurs d'onde restantes, la longueur d'onde distincte identifiant la fibre de branche respective.

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