Thermally expanded multiple core fiber

Details Thermally expanded multiple core fiber Thermally expanded multiple core fiber

G - Physics

02

B

G02B 6/02 (2006.01) G02B 6/255 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2332614

An optical fiber (630) having a thermally expanded multiple core section (632, 642). One such multiple core section may be fabricated by fusing together non- etched multiple fiber cladding resulting in the multiple cores having expanded mode fields that are positioned in close proximity to each other in a common cladding (634), without signal coupling between the cores. The close proximity of the cores having expanded mode fields may allow for tighter alignment of light waves propagated from one core to other cores.

L'invention concerne une fibre optique (630) comprenant une section à plusieurs noyaux dilatés par voie thermique (632, 642). Cette section à plusieurs noyaux peut être fabriquée par fusion de gaines de fibres multiples non corrodées, d'où la formation de plusieurs noyaux ayant des champs de mode dilatés, et situés très proches les uns des autres à l'intérieur d'une gaine normale (634). Toutefois, aucun couplage de signaux ne se produit entre les noyaux. L'étroite proximité des noyaux dont les champs de mode sont dilatés peut donner lieu à un alignement plus serré des ondes lumineuses se propageant d'un noyau à l'autre.

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