Why 3dB bandwidth keep the same as the detector length （Ge length） increase？
Dear lumerical support,
When I increase photodetector length(Ge length) from 5um to 50 um, I found performance behave normally except for 3dB bandwidth, which remain the same, which isconflict with what it should be.
The performance calculated is shown below.
I really want to know what happened.
The simulation profile of 3dB bandwidth for length 5um and 30um is in attchment.
I really wish to get help from you!