光学学报, 2009, 29 (8): 2082, 网络出版: 2009-08-17
利用半导体光放大器实现10 Gb/s全光半减器的组合逻辑实验研究
The Experimental Research on 10 Gb/s all-Optical Half-Subtracter by Using Semiconductor Optical Amplifier
光通信 全光半减器 半导体光放大器 四波混频 交叉增益调制 optical communication all-optical half-subtracter semiconductor optical amplifier(SOA) four-wave mixing (FWM) cross-gain modulation (XGM)
摘要
提出了一种新型全光半减器组合逻辑方案。该方案基于两个半导体光放大器(SOA)和窄带光滤波器(NOBPF)。利用SOA的四波混频(FWM)和交叉增益调制(XGM)效应, 通过调整NOBPF的中心波长, 第一个SOA产生逻辑“·B”门, 提供半减器的“借位”, 同时该SOA产生“同或”逻辑; 第二个SOA产生“非”逻辑, 两个SOA级联后产生逻辑“异或”门, 提供半减器的“差”位。实验中, 实现了两路10 Gb/s伪随机归零(RZ)码信号间的全光半减逻辑运算。
Abstract
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.
韩丙辰, 于晋龙, 张立台, 王文睿, 江阳, 张爱旭, 杨恩泽. 利用半导体光放大器实现10 Gb/s全光半减器的组合逻辑实验研究[J]. 光学学报, 2009, 29(8): 2082. 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.