Corning Incorporated

Fabrice J Jean

Thierry L Dannoux

Patrick J Herve

Eric J Firtion

Martin McCourt

An optical waveguide component, with a pigtail attached thereto, is disclosed in which a portion of a surface of the component is bevelled and a portion of the endface of the pigtail is bevelled. The bevelled portion of the pigtail endface is oriented to be substantially parallel to the bevelled portion of the component surface or is oriented to be open with respect to the component surface. The pigtail endface can be continuously bevelled to form a substantially conical shape on the pigtail endface, wherein the substantially conical shape is offset from the optical axis of the pigtail.

Planar optical waveguides with low back reflection pigtailing

An optical coupler with an input and 2.sup.n outputs comprises a plurality of substantially coplanar waveguides, each optically coupling said input to one of said 2.sup.n coupler outputs, said waveguides comprising a plurality of waveguide sections connecting n stages of Y-junctions disposed along each waveguide path in a tree and branch arrangement, and further comprises a first junction (J.sub.21), having an axis not parallel to that of said coupler, which is connected to two second junctions (J.sub.31, J.sub.32) by curved waveguide sections without singularities, wherein any inflection point along any one of the waveguides, between the input and the nth stage of the junctions, is situated at one of the n junctions along the waveguide path. The coupler may be successfully applied to splitters or combiners and carried out in integrated optics, and a method for designing the mask used in the manufacture of the integrated optics coupler is also described.

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Fontainebleau, France

Fabrice J Jean