Deposition of a hyperbolic lens on the end face of an optical fibre

The lens (20) is hyperbolic in shape and has an elliptical base. It is formed at the end of an elliptical optical fibre cable (10). The lens focusses light onto a transducer placed opposite the lens. The lens is formed by cutting a fibre optic cable, forming a straight cut, and pulling a second cabl...

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Hauptverfasser: SEMO, JACK, KALONJI, NDIATA
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The lens (20) is hyperbolic in shape and has an elliptical base. It is formed at the end of an elliptical optical fibre cable (10). The lens focusses light onto a transducer placed opposite the lens. The lens is formed by cutting a fibre optic cable, forming a straight cut, and pulling a second cable under an electric field to form a point. The point is then applied to the straight cut, to pull out a crystal under an electrical field. As the cable is elliptical, the base is also elliptical and a hyperbolic shape is produced. La présente invention concerne un procédé de lentillage d'une fibre optique comprenant les étapes qui consistent à déposer une lentille (20) de section elliptique et de forme en hyperboloïde de révolution sur l'extrémité clivée (12) d'une fibre à maintien de polarisation (10). Utilisation: Couplage d'une fibre optique avec un phototransducteur.