Method of identifying an optical cable

H - Electricity – 04 – B

Patent

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Details

H04B 10/08 (2006.01) G01M 11/00 (2006.01) G01M 11/08 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2079724

There is provided a method of identifying a particular optical cable out of a plurality of similar optical cables in a simple, quick and accurate manner without requiring any significant additional cost. For identifying a particular optical cable C2 out of a plurality of optical cables C1 through C3 by means of a means for transmitting optical signals 11, a signal receiving/detecting means 13 and a signal applying device 16 and by utilizing the fluctuation in the level of optical signal due to the photoelastic effect that appears when external signals are applied to a cable carrying an optical signal, external signals are applied to the outer peripheral surface of each of the optical cable at a plurality of spots to boost the level of fluctuation of optical signal so that the particular optical cable can be identified without fail. Thus, the method of the present invention can be used to identify a particular optical cable out of a plurality of similar optical cables in an accurate and reliable manner by using a simple means of applying external signals.

L'invention est une méthode permettant d'identifier un câble optique particulier parmi une pluralité de câbles optiques similaires de façon simple, rapide et précise, sans dépense significative additionnelle. Pour identifier un câble optique particulier C2 parmi une pluralité de câbles optiques C1 à C3 à l'aide d'un dispositif de transmission de signaux lumineux 11, d'un dispositif de réception/détection de signaux 13 et d'un dispositif d'application de signaux 16 et en utilisant la fluctuation du niveau du signal lumineux due à l'effet photoélastique qui est produite quand des signaux externes sont appliqués au câble qui transmet ce signal lumineux, des signaux externes sont appliqués à la surface périphérique externe de chacun des câbles optiques à plusieurs endroits pour accentuer la fluctuation du signal lumineux afin que le câble optique à identifier puisse être identifié sans défaillance. La méthode de la présente invention peut donc être utilisée pour identifier un câble optique particulier parmi une pluralité de câbles optiques similaires de façon précise et fiable en ne faisant simplement qu'appliquer des signaux externes.

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