Abstract
We study theoretically static and dynamic effects of cross talk between two bistable elements in the same interference filter. The nonlinearity is assumed to be thermal. In the steady state we find that an element in the ON state causes a thermal detuning in another in the OFF state, thereby decreasing its threshold power and narrowing its bistable region. We discuss various ON/OFF combinations in terms of interpixel separation. Starting with two elements in the OFF state, transients are studied by switching one of them with a pulse while the other one remains unaddressed. As the separation approaches a critical value from below, the switching time of the second element diverges. We interpret this effect as critical slowing down. Extension of these results to any array is also discussed.
© 1987 Optical Society of America
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