Abstract

One of the biggest challenges confronting optical computing is the need for an interconnection scheme that accommodates extremely high speed and parallelism for optical processing techniques. A real-time holographic element is a possible means of addressing these requirements with the added advantage of programmability. This can be realized by using the bidirectional light modulating capabilities of the double phase conjugate mirror (DPCM)¹ to form an interconnection mask or pattern. The DPCM employs four-wave mixing in a photorefractive crystal to achieve the exchange of spatial information between beams incident from opposite sides of the crystal that can be switched on or off to establish communication.

© 1987 Optical Society of America