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Pascal Simonpietri

Cedric Molucon

Stephane Chouvin

Frederic Guattari

Cédric Molucon

Alain Claire

Frédéric Guattari

Stéphane Chouvin

Disclosed is a method for producing an optical fiber coil including the following steps: a. symmetrical winding of an optical fiber around a shaft, the winding forming a pattern including a same number N of layers of each half of the optical fiber, one layer including a set of turns of optical fiber and spaces between adjacent turns, the winding forming a sectored arrangement including a regular stacking area including at least one continuous sealing surface between two layers of adjacent turns, and an overlap area where portions of optical fiber linking different turns cross each other; b. infiltration of a glue through an external surface of the overlap area in such a way that the glue infiltrates into the spaces located between adjacent turns in the regular stacking area.

Method for producing an optical fiber coil, optical fiber coil and optical fiber interferometer

Disclosed is an optical fiber interferometric system including a light source (), a fiber optic coil (), a coil splitter (), a photodetector (), and a polarization filtering unit. According to an embodiment, the polarization filtering unit includes a first waveguide polarizer (), at least one second thin-plate polarizer () and an optical waveguide section (), the at least one second polarizer () being disposed in the Rayleigh zone between a first waveguide end () of the first polarizer () and a second waveguide end () of the optical waveguide section ().

Sagnac-ring fiber-optic interferometric system with Rayleigh length spaced polarizer

Disclosed is a waveguide polarizing optical device, including a first waveguide polarizer (), a section of a second optical waveguide () and a second thin-plate polarizer () having a physical thickness T and a refractive index n, the second thin-plate polarizer () being disposed on the optical path between a waveguide end () of the first polarizer () and one end () of the second optical waveguide (), the physical distance d between the waveguide end () of the first polarizer () and the end () of the second optical waveguide () being less than or equal to twice the Rayleigh length and the physical thickness T of the second polarizer () being less than or equal to the physical distance d.

Waveguide polarizing optical device

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Cormeilles en Parisis, France

Pascal Simonpietri