Verification of path integrity in optical switch network

Details Verification of path integrity in optical switch network Verification of path integrity in optical switch network

H - Electricity

04

B

H04B 10/08 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2472513

To verify the integrity of optical paths through and among optical switches (410), optical signals are provided with co-propagating supplemental signals. The supplemental signals preferably have at least one characteristic which allows distinguishing one supplemental signal from another. Associated with a port (414) of a switch (410), means (402) are provided for detecting a supplemental signal and determining if the supplemental signal indicates that a desired optical signal is passing through the port as expected and desired. Means (620, 720) for imparting or changing the distinguishing characteristic of a supplemental signal may also be employed to facilitate verifying the passage of optical signals.

Pour vérifier l'intégrité de trajectoires optiques par le biais de commutateurs optiques et parmi des commutateurs optiques, des signaux optiques sont dotés de signaux supplémentaires de copropagation. Ces signaux supplémentaires présentent de préférence au moins une caractéristique permettant de distinguer un signal supplémentaire d'un autre. Un moyen associé à un port ou à un commutateur permet de détecter un signal supplémentaire et de déterminer si ce signal supplémentaire indique qu'un signal optique voulu passe par le biais du port comme prévu et voulu. Un moyen permettant de conférer ou de changer la caractéristique distinctive d'un signal supplémentaire peut également être utilisé pour faciliter la vérification du passage de signaux optiques.

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