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对基于半导体光放大器非线性环镜的非归零信号时钟分量提取进行了数值模拟和实验研究。不仅采用半导体光放大器的分段模型分别对简化方案和抽运探测方案进行了 2 .5Gbit/s下的数值模拟 ,而且实验上采用这两种方案分别将 2 .5Gbit/s的非归零信号转换为包含其时钟分量的相应的伪归零信号。模拟计算结果与实验结果吻合得很好。实验和模拟结果均表明 :采用简化方案时转换输出的伪归零信号所包含的时钟分量的强度小于采用抽运探测方案的情况。 10Gbit/s下的模拟计算结果表明在码型效应尚能容忍的前提下简化方案工作速率的上限小于抽运探测方案。
Non-return-to-zero signal clock components extraction based on nonlinear optical loop of semiconductor optical amplifier are simulated and experimentally studied. Not only the segmentation model of the semiconductor optical amplifier is used to simulate the simplified scheme and the pump detection scheme respectively under 2.5Gbit / s, and the two schemes are used experimentally to separately transmit 2.5Gbit / s non-return-to-zero signals Converted to a corresponding pseudo-zero signal containing its clock component. The simulation results are in good agreement with the experimental results. The experimental and simulation results show that the pseudo-zero-return signal output by the reduced scheme contains less clock components than the pumped detection scheme. Simulation results at 10Gbit / s show that the upper limit of the simplified scheme working rate is less than that of the pumping scheme under the premise that the patterning effect can still tolerate.