Modelling of cross talk in 2-D bistable arrays with carrier diffusion

We present results for a two-dimensional model of arrays of optically bistable elements. We find that coupling is short-ranged and we show through a heuristic argument that only nearest-neighbour interaction occurs. This result is in marked constrast with the long range coupling between elements in nonlinear interference filters. We also compare a previously studied one-dimensional model for linear arrays with our results. It turns out that the 1-D model overstimates the coupling viz-a-viz the 2-D one in linear arrays but gives comparable results to those for square arrays. © 1987.