Learning Forum

[l76124262]

I am currently designing a ring modulator and have successfully simulated the transmission under different bias voltages in FDTD. I noticed that the Optical Time Variant S-Parameter element in INTERCONNECT allows the import of S-parameters for modulators to simulate eye diagrams. However, in the official examples and FDTD’s sweep functionality, I only found methods for S-parameter sweeps of passive components.

Could you please advise: how can I perform an S-parameter sweep for a modulator in FDTD? Is there a way to incorporate bias voltage variations into the sweep process and generate the corresponding S-parameters for use in INTERCONNECT's Optical Time Variant S-Parameter element simulation?

[GWANG]

Hi l76124262,

Thank you for the post. You are right that the time variant s-parameter cannot be directly generated from FDTD, and you will need to reformat the data once you get it from the simulations. You can find the time variant s-parameter data format here: https://optics.ansys.com/hc/en-us/articles/360036618513-S-parameter-file-formats. To generate the data for a ring modulator, you can refer to this example: https://optics.ansys.com/hc/en-us/articles/360042322794-Ring-Modulator.