Cheng L, Wang J M, Sawchuk A A
Appl Opt. 1993 Nov 10;32(32):6482-92. doi: 10.1364/AO.32.006482.
A method is described for arrangement of channels from different stages of a three-dimensional shuffle/exchange network so that only a single set of optics is needed to perform the two-dimensional shuffles. This arrangement is based on our earlier one-copy algorithm. It requires a feedback system and is an example of a space-multiplexed optical multistage network. We discuss the design issues and experimental results.