1xn fiber optic coupler/splitter

G - Physics – 02 – B

Patent

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Details

G02B 6/26 (2006.01) G02B 6/255 (2006.01) G02B 6/28 (2006.01)

Patent

CA 2242717

The end portions of a plurality of optical optical fibers are stripped; the coated portions of the fibers constituting pigtails. The stripped portion of oneof the fibers is fused to an uncoated fiber section having a diameter that is larger than that of the stripped fiber end portions. A fiber optic coupler preform is made by surrounding the uncoated fiber section with the stripped portions of the remaining fibers to form a close-packed fiber array. At least a portion of the overlapping region of the uncoated fiber section and the stripped end portions is heated and drawn to induce the coupling of optical signals between the uncoated fiber section and the stripped portions.

Les extrémités d'une série de fibres optiques sont dénudées, les parties revêtues des fibres constituant l'amorce. La partie dénudée de l'une des fibres est soudée à une section de fibre non revêtue dont le diamètre est supérieur à celui des extrémités dénudées. Une préforme de coupleur de fibres optiques est réalisée en plaçant autour de la section de fibre non revêtue les parties dénudées des fibres restantes pour constituer un faisceau serré de fibres. Au moins une partie du tronçon où la section de fibre non revêtue et les extrémités dénudées se chevauchent est chauffée et étirée pour induire le couplage des signaux optiques entre la section de fibre non revêtue et les parties dénudées.

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