Optical Architectures for Signal Processing - Part A

Abstract : The progress achieved in performing optoelectronic components makes feasible the generation of microwave functions using all-optical devices. in the first part of this presentation, the principle of microwave filtering using optical interferometers is described for both optical coherent and non-coherent regimes. Optical components are addressed in terms of microwave-optical S parameters. The experimental realization of filters using fibers or integrated optics is explained. In the second part, the use of optoelectronic techniques to control microwave devices is presented. For example, optically controlled switches and phase shifiers can be useful for phased array antennas Applications can be found also in the generation of millimeterwaves, optical probing, new microwave wide band devices.