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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › How to implement 50 Ohms output impedance of a PD? › Reply To: How to implement 50 Ohms output impedance of a PD?

December 10, 2024 at 9:57 pm
Kyle
Ansys Employee

 

Hello, for time domain simulations the electrical linear elements must be placed inside a Compound Element with its “scattering data analysis” set to “true”. INTERCONNECT will then calculate the S-parameters of the circuit, and use them in the simulation. There are a couple of examples of this here: Electrical Linear circuits – Ansys Optics

The electrical signal output of the PD element is a current, so it should be connected to a Current Source electrical linear element inside the compound element. Then connect this to the load Resistor, with a Voltmeter measuring the voltage across the resistor, like in the RC circuit example on the Electrical Linear circuits page.