DEVICE AND A METHOD FOR DISTINGUISHING FAULTS EMPLOYED IN AN OPTICAL TRANSMISSION SYSTEM

The present invention discloses a fault distinguishing device for establishing whether fault exists in an optical fiber cable and in another optical system. The disclosed device is intermediate between the optical fiber cable and the another optical system and optically coupled with the optical fibe...

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Bibliographic Details
Main Authors TOMITA, NOBUO, NAKAMURA, TAKASHI, TAKASUGI, HIDETOSHI, SUZUKI, HIDEKI
Format Patent
LanguageEnglish
French
Published 08.08.1995
Edition6
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TRANSMISSION
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Summary:The present invention discloses a fault distinguishing device for establishing whether fault exists in an optical fiber cable and in another optical system. The disclosed device is intermediate between the optical fiber cable and the another optical system and optically coupled with the optical fiber cable and the another optical system. The disclosed device is composed of at least one intrinsic optical fiber and at least one optical filter. The optical filter is internal to a corresponding intrinsic optical fiber, and forms an angle of between 0 and 4.7 degrees inclusive with respect to a plane perpendicular to the longitudinal axis of the intrinsic optical fiber, such that the optical fiber is cable of reflecting a first light component and of transmitting a second light component. The first light component and the second light component differ from one another in terms of wavelength.
Bibliography:Application Number: CA19902031870