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Acousto-Electro-Optic Modulation Of Coherent Light In Saw Devices

A new way to modulate coherent light is achieved by using acousto-optic and electro-optic diffraction simultaneously in surface acoustic wave devices. The light is contained to a region directly under the electro-optic transducer. Simultaneous use of electro-optic and acousto-optic interactions causes the interaction between them that can be used to give multiplication between the acousto-optic and electro-optic signals. The object of this paper is to fully describe this interaction and also show how it can give more degrees of freedom to the designer and lead to more versatile and compact implementation of optical computing architecture.