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Photonics

Photonics

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Grating coupler design

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    • October 24, 2024 at 12:00 pm
      rahul.sanghvi
      Subscriber

      I am designing a grating coupler and the transmission value is negative. I dont understand why is it negative or should I check the absolute value?

    • October 24, 2024 at 5:52 pm
      Kirill
      Ansys Employee
      Hello Rahul,
       
      Negative values mean the power is flowing in the negative direction of the axis. You can find some additional information on this topic in transmission - Script command, and Tips for accurately measuring reflection in an FDTD simulation.
       
      Best regards,
      Kirill
      • October 25, 2024 at 2:37 pm
        rahul.sanghvi
        Subscriber

        Thank you so much for the clarification.

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