If you want to analyze the mode as a function of frequency, use the frequency analysis tab.
To track a specific mode, you first need to run the Modal analysis and select the desired
mode from the mode list and then select the track selected mode in the frequency analysis
The start frequency or wavelength of the frequency sweep is set by the frequency used in the
previous modal analysis.
So, it is not editable in the frequency sweep tab when the track selected mode option is
After specifying the stop wavelength and number of measurement points, click on the Frequency
The left plot in the Plot area shows the mode you have selected in the mode list.
The one on the right corresponds to the mode at current frequency point as the sweep progresses.
The Mode plot options are the same as for Modal analysis tab.
The Frequency plot tab allows you to plot the effective index, group index, dispersion,
and so on.
You have options for linear/log scale, plot against frequency or wavelength, plot with
lines or points, plot in new window.
When calculating Dispersion, it is important to enable detailed dispersion calculation
If you have dispersive materials, it is also important to use the MCM material fitting
Like in Modal analysis tab, you can export the data in txt, mat, and ldf file formats.
There is also an additional export option for INTERCONNECT.
This requires detailed dispersion calculation and store mode profiles while tracking to
be selected in your frequency sweep.