.Experimental study on all-optical half-adder based on semiconductor optical amplifier[J].Optoelectronics Letters,2009,5(3):161-164 Experimental study on all-optical half-adder based on semiconductor optical amplifier 韩丙辰  于晋龙  王文睿  张立台  胡浩  杨恩泽 HAN Bing-chen(School of Electronic Information Engineering, Key Laboratory of Optoelectronic Information Science and Technology,Ministry of Education of China, Tianjin University, Tianjin 300072, China;School of Physics and Electronic Science, Datong University, Datong University, Datong 037009, China) ;YU Jin-long,WANG Wen-rui,ZHANG Li-tai,HU Hao,YANG En-ze(School of Electronic Information Engineering, Key Laboratory of Optoelectronic Information Science and Technology,Ministry of Education of China, Tianjin University, Tianjin 300072, China) ? Abstract:       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. Hits: 3838 Download times: 202 View Full Text    Download reader