COMPACT OPTICAL CROSSBAR SWITCH

A novel compact holographic crossbar architecture based on planar opti cs is presented. It consists of a pair of identical planar holographic elements, a two-dimensional array (N x N) transmission mask, a one-di mensional array (N) of input light sources, and a one-dimensional arra y (N) of detectors. Each planar element contains two cylindrical holog raphic lenses, both of which are recorded on a single glass substrate. The design of the overall compact configuration is presented along wi th experimental results. (C) 1997 Optical Society of America.