How to simulate the transmission loss of below waveguide


#1

How to simulate the transmission loss of below waveguide? Waveguide width = 2um. Mode concentrates on core layer. Thank you !


#2

Hi,
What do you mean with the Transmission loss of the below waveguide? Do you need the propagation loss of the mode that has its power confined in the core area??
If so, this can simply be calculated using the mode solver either using FDTD or MODE.


#3

Hi, it is the propagation loss of the mode that has its power confined in the core area.

Do you mean by using FDE solver to export loss?


#4

Yes, exactly you can do this using FDE solver.
I have another more accurate way. Use FDTD solver. Excite the mode at the input of the waveguide and let it propagate for a sufficient length (depends on the losses estimated by mode analysis). Monitor the transmission of the power at the output.