Cascaded All-Optical Operations in a Hybrid Integrated 80-GB/S Logic Circuit

We demonstrate logic functionalities in a high-speed all-optical logic circuit based on differential MachZehnder interferometers with semiconductor optical amplifiers as the nonlinear optical elements. The circuit, implemented by hybrid integration of the semiconductor optical amplifiers on a planar lightwave circuit platform fabricated in silica glass, can be flexibly configured to realize a variety of Boolean logic gates. We present both simulations and experimental demonstrations of cascaded alloptical operations for 80-Gb/s on-off keyed data.

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