Fig. 1
From: A fully reconfigurable waveguide Bragg grating for programmable photonic signal processing
Schematic view of reconfigurable grating. The grating consists of multiple series-connected uniform Bragg grating sections and an FP cavity section in the center of the grating. Each uniform Bragg grating section incorporates an independent lateral PN junction, and between two neighboring sections there is an un-doped grating to function as an insulator. A pair of electrodes (Signal and Ground) are connected to each independent PN junction
