Learning Forum

[nazym.alipbayeva]

Good evening,

Could you please tell me what can cause this spike in the beginning of the dynamic response? I get it each time when I run the simulation. The different parameters have been changed. But this spike keeps appearing every time. 

I am working with a circuit that contains several micro-ring resonators. But even when I use only one MRR, this spike appears.

 

Thank you in advance!

 

[Dev]

Hello Nazym,

It is normal. "The overshoot and ringdown behavior, is expected when one considers the dynamics of the cavity resonance.

You can find more information here:  " INTERCONNECT: Enabling time and frequency domain simulation of photonic integrated circuits with microring modulators (lumerical.com)

Thanks 

Devika