An example system includes a high-side electrode layer including a number of discrete electrodes and a low-side electrode layer. The system further includes an electro-optic (EO) layer including an EO active material positioned between the high-side electrode layer and the low-side electrode layer, thereby forming a number of active cells of the EO layer. Each of the number of active cells of the EO layer includes a portion of the EO layer that is positioned between one of the discrete electrodes and the low-side electrode layer. The example system further includes an insulator operationally coupled to the active cells of the EO layer, and at least partially positioned between a first one of the active cells and a second one of the active cells.