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Steve Dods

This issue is just one of precision of simulations. In waveguide.bpd, the Power overlap integral varies between 1 and 0.974. In the same project with finer mesh, larger window, and mode solver tolerance made tighter (waveguide3.bpd), the variation is from 1 to 0.996. This simulation is showing the accuracy of the simulation under the given mesh and mode solver tolerances.