Superstructured addressed fiber Bragg structures

We present results of a theoretical study of capabilities of multi-addressed fiber Bragg structures formed by combining an array of uniform low-reflection fiber Bragg gratings and specially structured discrete phase shifts. The research is based on the mathematical apparatus of scattering and transmission matrices. The obtained results provide new perspectives for the integration of multi-addressed fiber Bragg structures into radiophotonics devices and fiber-optic sensor systems, leading to a new class of both radiophotonic devices and basic passive optical elements. The multi-addressed Bragg structures investigated in this study simultaneously perform the role of radiophotonic beamformers and sensing elements, which ensures the implementation of key general requirements for the components of radiophotonic systems. We also present principles of controlling spectral characteristics of the multi-addressed systems of this type.