Optical fibre coupler

Details Optical fibre coupler Optical fibre coupler

G - Physics

02

B

88/97.5

G02B 6/28 (2006.01)

Patent

CA 1267311

ABSTRACT A coupler is provided for establishing optical connection between a first optical fibre and a plurality of further optical fibres, formed by a transparent member in the shape of a paraboloid limited by a plane perpendicular to the paraboloid axis and having an inwardly reflective curved surface, an array of lenses having axes parallel to the paraboloid axis, the array being coplanar with the perpendicular limiting plane and including a first lens coaxial with the axis of the paraboloid, and centring means for receiving and aligning the ends of a plurality of optical fibres coaxially with said lenses, the end of the first optical fibre being located coaxial with the lens coaxial with the paraboloid axis so that an image of the fibre end is formed at the focus of the paraboloid, and the further optical fibre ends being located coaxial with further lenses in the array such that radiation parallel to the lens axes is condensed on the further fibre ends.

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