High density fiber optic acoustic array

G - Physics – 02 – B

Patent

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G02B 6/00 (2006.01)

Patent

CA 2631950

A method for optimizing the architecture of a linear sensor array using WDM- TDM technology and stabilizing the reflectivity spectral profile of the fiber Bragg gratings of the sensors against the influence of environmental factors such as pressure and temperature is provided. The method includes stripping a portion of the foamed coating on the exterior of an optical fiber in the region of the fiber Bragg grating to thin the coating in the region of the grating. After the coating is stripped and the optical fiber cleaned, the area of stripped fiber is recoated with an unvoided plastic.

L'invention concerne un procédé d'optimisation de l'architecture d'un réseau linéaire de capteurs en utilisant la technologie WDM-TDM et en stabilisant le profil spectral de réflectivité des réseaux de Bragg en fibre des capteurs pour contrecarrer l'influence de facteurs environnementaux tels que la pression et la température. Le procédé comprend l'étape consistant à dénuder une partie du revêtement en mousse à l'extérieur d'une fibre optique dans la région du réseau de Bragg en fibre pour amincir le revêtement dans la région du réseau. Après que le revêtement a été dénudé et la fibre optique nettoyée, la zone de fibre dénudée est à nouveau revêtue d'un plastique sans vides.

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