Learning Forum

[hdyang]

Hello,

I am researching frequency up-conversion. 

Is it possible to use a short source wavelength in FDTD and check the frequency-domain field and power monitors at other broad band wavelengths?

[hdyang]

example)
short source wavelength : 2um
broad band wavelengths : 0.4um ~ 1.5um

[Kirill]

 

Dear Subscriber,

By default, the DFT Monitor uses the source spectral limits. However, you can modify this as follows:

 

• Navigate to Monitor Settings.

 

• Under the General tab, check override global monitor settings.

 

• Uncheck use source limits and set your desired range of interest.

 

Please note, that due to the nature of FDTD algorithm the finite duration/bandwidth of the source is always used. See Can we use a dipole source with a single frequency?

Additionally, refer to the article Frequency-domain Profile and Power Monitor – Simulation Object – Ansys Optics for more information.

Best regards,
Kirill