When inputting light from a port, I want the line width of the light to be as cl

- November 13, 2022 at 9:14 am
  
  能勢武尊
  Subscriber
  
  ポートから光を入力するとき、光の線幅をできるだけゼロに近づけたい。
  ただし、写真でわかるように、線幅はこれ以上狭くすることはできません。
- November 15, 2022 at 4:20 am
  
  Guilin Sun
  Ansys Employee
  
  It seems you want a single frequency source?
  If you are simulating linear optics, it is not necessary to have single frequency source. Instead, you can set the monitor to record the single frequency result.
  
  You can also use longer pulse to narrow down the spectrum, by setting the source in time domain.
  
  Lastly, you can refer this example to have a quasi-monochromatic source: https://optics.ansys.com/hc/en-us/articles/360042192813-1D-cavity-laser-using-4-level-2-electron-material

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