Gemfire Europe Limited

Harm Van Weerden

Frederick Marcel Van Der Vliet

A 1&#xd7;2 splitter design having low loss is described. The splitter has a non-adiabatic tapered waveguide () connected between a substantially single-mode input waveguide () and two output waveguides (). The non-adiabatic tapered waveguide widens in width towards the output waveguide, and merges substantially continuously with the input waveguide in a direction parallel to the optical axis of the input waveguide. This keeps radiation mode generation to a minimum which, in turn, keeps insertion loss low. In the described embodiment, the non-adiabatic taper shape is based on a perturbed cosine function. The 1&#xd7;2 splitter can be cascaded with other such splitters in order to build a 1&#xd7;2N splitter design.

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Enschede, Netherlands

Harm Van Weerden