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US 5,402,510 AGranted
Method of preparing an optical fiber with multiple lenses to optimize coupling with a phototransducer, and an optical system obtained thereby
AssigneeFrance Telecom
InventorsNdiata Kalonji, Jack Semo
Life of this patent
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Abstract
The present invention relates to a method of preparing an optical fiber for optimum coupling with a phototransducer, comprising the following steps: cleaving an end surface on an optical fiber; and depositing a succession of convex lenses on said cleaved surface over the core of the fiber, the lenses being in axial alignment and of decreasing radii of curvature on going away from the fiber. The present invention also provides a system obtained by implementing the method.
Claims15
A method of preparing an optical fiber for optimum coupling with a phototransducer, comprising the following steps:
- cleaving an end surface on an optical fiber;
- and
- depositing a succession of convex lenses on said cleaved surface over the core of the fiber, the lenses being in axial alignment and of decreasing radii of curvature on going away from the fiber.
Dependencies are inferred from the claim text.