Opto-VLSI based reconfigurable photonic RF bandpass filters
International Institute of Informatics and Systemics
Faculty of Computing, Health and Science
Electron Science Research Institute (ESRI)
In this paper, the capability of Opto-VLSI processors to generate reconfigurable diffractive gratings is utilised to efficiently control the optical power distribution in photonic signal processing structures, achieving photonic RF bandpass filtering with arbitrary transfer functions. A new OptoVLSI- based photonic signal processing architecture that integrates fibre collimator arrays, photoreceiver arrays, and numerous active fibre Bragg grating cavities of different lengths, is presented. The Opto-VLSI technology provides a cost-efficient and reliable means for controlling the gains and i the ,input power of the Bragg cavities. Sirnulatiom results show that a reconfigured 32-cavity photonic filter structure can generate arbitrary bandpass transfer characteristics.