Reply To: No change in phase of optical modulator with change in DC voltage source

[Guilin Sun]

change in phase in a optical modulator using dc voltage should be first simulated in CHARGE, and then import the carrier density as np density attribute. Please refer to this example: https://optics.ansys.com/hc/en-us/articles/360042456054-Electro-absorption-modulator

or

https://optics.ansys.com/hc/en-us/articles/360042328774-Traveling-Wave-Mach-Zehnder-Modulator

https://optics.ansys.com/hc/en-us/articles/360034901753-np-Density-and-Temperature-Index-Perturbation-Simulation-object 

The data should be effective index vs voltage for INTERCONNECT use.