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为了解决全光码型转换中结构复杂和速率限制的问题,提出了应用于全光网络,利用半导体光放大器的非线性效应和光带通滤波器滤出特定光谱成分来实现全归零码到非归零码的全光转换方案.基于超快半导体光放大器模型,进行了40Gbps归零码到非归零码全光转换的仿真与实验验证.实验结果表明:40Gbps归零码到非归零码全光转换的功率损耗约为2dB,与仿真结果高度吻合,验证了该方案的可行性与有效性.
In order to solve the problem of the complicated structure and the rate limitation in the all-optical code conversion, this paper presents a new method which can be applied to all-optical networks. The nonlinear effect of the semiconductor optical amplifier and the optical band-pass filter are used to filter out the specific spectral components to realize the all- All-optical conversion scheme of zero-return code.A simulation and experimental verification of 40Gbps return-to-zero all-optical conversion based on the ultrafast semiconductor optical amplifier model is carried out.The experimental results show that the 40Gbps return to zero return to zero The power loss of all-optical conversion is about 2dB, which is in good agreement with the simulation results to verify the feasibility and effectiveness of this scheme.