Agilent Technologies, Inc.

Emilio Riccardi

Riccardo Calvani

Francesco Cisternino

Raffaele Girardi

This invention concerns a method of and a device for optical demultiplexing that are based on the four wave mixing between the signals to be demultiplexed and pump signals. The two signals are fed into a polarization maintaining fiber ( ), which divides them into two components with orthogonal polarization, separated in time; and the four wave mixing is performed separately on the two components, thereby originating two separate signals that are polarization-rotated and re-combined. (FIG. ).

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Turin, Italy

Emilio Riccardi