基于非线性极化旋转技术的640G全光解复用

640G all-optical demultiplexing based on nonlinear polarization rotation

考虑超快载流子动态特性,文章通过仿真详细分析了基于半导体光放大器的非线性极化旋转效应实现640Gb/s到80Gb/s的解复用方案。结果表明:开关窗口的上升沿随时钟脉冲能量的变化不是很明显,而FWHM和下降沿则随时钟脉冲能量的增加而增加。此外,在相同条件下,当输入的时钟信号为TE模式时,输出的解复用信号具有最高的信道压制比。

Taking into account ultra-fast carrier dynamics, 640Gb/s to 80Gb/s demultiplexing scheme based on nonlinear polarization rotation （NPR） in semiconductor optical amplifier （SOA） are numerically analyzed in detail. Simulated results show that the rise time of switching window does not strongly depend on clock pulse energy, whereas the FWHM and fall time of switching window are increasing with the increase of the clock pulse energy. From the simulated analyses, it is clear that for the higher output channel suppression ratio, the input clock signal with TE mode is required in the same conditions.