Experimental study on all-optical half-adder based on semiconductor optical amplifier

Abstract

We demonstrate a novel all-optical half-adder based on two semiconductor optical amplifiers (SOAs). Two optical bandpass filters are used to select the two idlers generated by four-wave mixing (FWM) effect of the first SOA. Therefore, the AND gate and XNOR logic are realized simultaneously. The second SOA acts as a NOT gate, in which the NOR logic is achieved with the input of the logic XNOR. As a result, the output is the sum of the two input bits and the carry. In the experiment, all-optical half-addition calculation is achieved between two 10 Gb/s signals.

Keywords

Wavelength Division Multiplexer / Semiconductor Optical Amplifier / IEEE Photonic Technology Letter / XNOR Gate / Continuous Wave Signal

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