Christoph BERGER, Neil COLLINGS, Ali R. POURZAND and Reinnard VÖKEL

Institute of Microtechnology, University of Neuchâtel, Rue A.-L. Breguet 2, CH-2000 Neuchâtel, Switzerland

(Received May 9, 1996; Accepted October 1, 1996)

Two different methods of pattern replication (conventional and interlaced fan-out) have been investigated and experimentally tested in a reconfigurable 5×5 optical interconnect. Similar alignment problems due to imaging errors (field curvature) were observed in both systems. We conclude that of the two methods the interlaced fan-out is better suited to avoid these imaging errors, to reduce system size and to implement an optical feedback loop.

Key words : optical neural network, reconfigurable interconnect, liquid crystal television, microlens-array