Acta Optica Sinica, Volume. 29, Issue 8, 2082(2009)
The Experimental Research on 10 Gb/s all-Optical Half-Subtracter by Using Semiconductor Optical Amplifier
A novel all-optical half-subtracter combination logic scheme is demonstrated, based on two semiconductor optical amplifiers (SOA) and three narrow optical bandpass filters (NOBPF). By utilizing four-wave mixing (FWM), cross-gain modulation (XGM) in the SOA and through adjusting narrow optical bandpass filter central wavelength, the first SOA generates ·B logic and provides borrow bit of half-subtracter, simultaneously the SOA generates XNOR logic; the second SOA generates NOT logic, two cascaded SOAs engender XOR logic and provides difference bit of half-subtracter. In the experiment, all-optical half-subtraction Boolean calculation is achieved between 10 Gb/s PRBS signals.
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Han Bingchen, Yu Jinlong, Zhang Litai, Wang Wenrui, Jiang Yang, Zhang Aixu, Yang Enze. The Experimental Research on 10 Gb/s all-Optical Half-Subtracter by Using Semiconductor Optical Amplifier[J]. Acta Optica Sinica, 2009, 29(8): 2082