How can I get a two custom pluses as a source in FDTD simulation?

- March 25, 2021 at 3:41 pm
  
  YounusMandalawi
  Subscriber
  
  I used the code provided here https://support.lumerical.com/hc/en-us/articles/360034383114-Creating-a-custom-source-time-signal-for-an-FDTD-source to get two gaussian pulses as below.
- March 25, 2021 at 9:00 pm
  
  Kyle
  Ansys Employee
  
  nTo use this signal you will have to somehow change lines 17 and 18 to create a vector that corresponds to your time signal. I don't think there are any built-in functions to create the type of signal you're interested in, unless you can use mathematical functions like the double Gaussian pulse example. Alternatively, if you have the data for the signal in a text file you could import the data with the readdata command:nn
- March 26, 2021 at 2:38 pm
  
  YounusMandalawi
  Subscriber
  
  Thank you. I changed the numbers in that equation to get different pulse duration and gaussian order.nn
- March 26, 2021 at 2:49 pm
  
  YounusMandalawi
  Subscriber
  
  I have one more question please. Is is normal that at the time monitor, I only can see the signal at the Z dimension only??? It is 0 for X and Y. nn
- March 26, 2021 at 4:26 pm
  
  Kyle
  Ansys Employee
  
  This will depend on the polarization of the source, not the time signal. If you have a plane wave polarized in the z direction the x and y components of the electric field will be zero.n

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