Home Forums GENERAL Overlap integral inside Matlab component

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    • #43415
      Shayma Akram
      Participant

      Hello,
      I have interfaced Optisystem with Matlab, I want to know how to calculate the overlap integral using the data of the Inputport structure, inside Matlab component?

      Overlap Integral (OI)

    • #43417
      Damian Marek
      Participant

      This is basically a numerical integration of the electric field distribution of the input signal. The input signal’s field distribution is found under “InputPort1.Sampled.Spatial.ModeX.Amplitude”. If this is your first time with the Matlab component please go through all of the material on our website like the youtube videos etc. on the subject.

      • #43419
        Shayma Akram
        Participant

        I have already collected the electric field distribution from InputPort1.Sampled.Spatial.ModeX.Amplitude, but I want to know how to calculate the Overlap Integral from the “InputPort1.Sampled.Spatial.ModeX.Amplitude” in Matlab. Is it by using trapz() function in Matlab?

        • #43422
          Damian Marek
          Participant

          Exactly use trapz function

        • #43423
          Shayma Akram
          Participant

          could you please check the following code:

          xc = linspace(0,1,M);
          yc = linspace(0,1,M);

          A = E1 .* E2;

          B = (trapz(xc,trapz(yc, abs(A))) ).^2;

          C = trapz(xc,trapz(yc, abs(E1).^2)) * trapz(xc,trapz(yc, abs(E2).^2 ));

          OI = B./C;

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