摘要
We demonstrate a novel all-optical half-adder based on two semiconductor optical amplifiers(SOAs).Two optical band-pass 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.
We demonstrate a novel all-optical haft-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 haft-addition calculation is achieved between two 10 Gb/s signals.
基金
supported by the National Nature Science Foundation of China (Grant No.60572013 and 60736035)
the National "863"Program of China (Grant No. 2007AA01Z272)
partly supported by the Program for New Century Excellent Talents in Ministry of Education of China
