Calculates the modes supported by the structure using the current calculation settings. This function is the script equivalent to the "Calculate Modes" button. Each mode will be saved as a D-CARD named "modeX", where X is the xth mode found. The D-CARD saves data such as effective index and mode profile.
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Syntax |
Description |
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n=findmodes; |
n will be equal to the number of modes found. |
Example
To perform a frequency sweep on the first mode and plot the dispersion:
switchtolayout;
findmodes;
selectmode(1);
setanalysis("track selected mode",1);
setanalysis("detailed dispersion calculation",1);
frequencysweep;
D=getdata("frequencysweep","D");
f=getdata("frequencysweep","f_D");
plot(c/f*1e6,D*1e6,"Wavelength (um)", "Dispersion (ps/nm/km)");
See Also
List of commands , setanalysis , mesh , selectmode , frequencysweep , coupling , overlap , bestoverlap , propagate