Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language

interconnect 仿真眼图

    • zhanggaolu17

      您好!我正在仿真调制器NRZ眼图,按照官方给的“TWM_waveguide_electrodes”文件以及“optical_pam4”文件进行的修改。 我把行波电极的各个参数都导入了,都是从hfss仿真之后得到参数,包括损耗,特征阻抗,波导的有效折射率,传输线的群折射率等。但是得到的眼图不理想,跟我们实测的调制器的眼图不一样,而且眼图很乱,眼图曲线很少。我不知道是我设置的问题还是仿真的结果就是这样。不知道哪里可以上传仿真文件,暂时先截几张图片。麻烦帮我看看,多谢!(仿真的是差分推挽结构的调制器)

    • Guilin Sun
      Ansys Employee


      “眼图曲线很少”, 应该是选择的信号太短了吧?据我所知,眼图是将一个周期内不同时段的信号画在一起的。你查查。When setting up a simulation system, the sequence length (number of bits) and samples per bit should be large enough to guarantee the accuracy. A longer simulation sequence length may take longer time, hence to carefully choose the two parameters is important. The default sequence length and samples per bit are 128 and 64, respectively; these values would suit most of the simulation cases.


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