Thank you for he reply. I understand we have a MZ device, but from the individual S matrix, we do not expect a resonance, as the phase shift is set to zero.
Furthermore, notice how there is two lines plotted in the figure, a blue, close to 100% transmission line (the expected transmission) plus a green, close to zero transmission line, which shows the weird spikes. When summing blue and green at the wavelengths where the spikes appear, a transmission >100% is measured.
Please let me know what to think of this.
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