基于光纤中四波混频效应光逻辑门的信号同步提取与擦除

设计并演示了一种新型的光信号全光提取与擦除方案。将两个时域上同步，强度反相的矩形光脉冲作为控制信号，通过光纤中四波混频效应所形成的逻辑门（与门和非门），可以对一段时隙上的光数据进行同步的提取和擦除。对10 Gb/s非归零信号的仿真和实验验证了方案的可行性。方案可在更高速率的系统下工作，并对波长和码型透明。

Abstract

A simultaneous optical signal dropping and cleaning scheme is presented by utilizing fourwave mixing effects based optical logic gate (AND and NOT) in optical fiber. Two synchronized square pulse control signals with inverted intensity, coupled with data stream, produce fourwave mixing effects to implement dropping and cleaning functions. Simulation and experimental results are successfully demonstrated with nonreturn to zero (NRZ) data at 10 Gb/s. The proposal may work at higher bit rate with transparence for operation wavelength and data format.

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罗旋, 江阳, 于晋龙, 胡林, 吴波, 文江洪, 李玉金. 基于光纤中四波混频效应光逻辑门的信号同步提取与擦除[J]. 光学学报, 2010, 30(9): 2524. Luo Xuan, Jiang Yang, Yu Jinlong, Hu Lin, Wu Bo, Wen Jianghong, Li Yujin. Simultaneous Optical Signal Dropping and Cleaning by UtilizingFourWave Mixing Effects Based Optical Logic Gate in Optical Fiber[J]. Acta Optica Sinica, 2010, 30(9): 2524.

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