Learning Forum

[adevata]

Hello,

I am trying to implement scattering losses in the results of my FDE frequency sweep. Ideally, I would like to add 1.5 dB/cm to the frequency-dependant loss values that FDE calculates. Additionally, I would like to save these adjusted values in the .ldf file associated with the frequency sweep, as my workflow will import these .ldf files into INTC. If it is easier to accomplish this on the INTC side (without modifying the .ldf file), that is completely fine too. The key is that there is still a net frequency dependance to the loss. Regardless of the approach, all of this should be done programmatically with a .lsf script.

What is the best way to add scattering losses in either FDE or INTC? Any and all help would be greatly appreciated. Thank you in advance for your time and help!

-AD

[Afroditi Petropoulou]

Hello and thank you for contacting us,

 

If you use a “MODE Waveguide” element in INTERCONNECT you can load the ldf file generated from MODE simulation and then use the excess loss option to add extra loss. This should be equal to the scattering loss (in dB/m) times the waveguide length (in meters).

 

Would this option be ok for you?

 

Best regards,

Afroditi

[adevata]

Hi Afroditi,

Thank you for your help! I believe that would work for me. To be clear, the excess loss parameter in the MODE WGD will not overwrite the bending loss that is imported from the .ldf file, and instead they would add?

Additionally, under the enhanced properties section, should "propagation loss" be set to true, or false? The file I am basing this off of has it as true, but I'm also not entirely sure where the propagation loss is coming from because it is not a parameter returned to me during the FDE simulations.

Thanks again for your help!

-AD

[Afroditi Petropoulou]

Hello,

 

The "propagation loss" should be set to true. The excess loss shouldn't override the imported loss. You can check it by running one simulation with "excess loss" set ot zero and visualize the loss. Then add excess loss and check if the calculated loss is the imported loss plus the excess loss.

 

Best regards,

Afroditi