Emulation of multistage interconnection networks by fibre memory

Timeslot interchanging by efficient optical switches

“…the 2 × 2 thermal‐optical multiplexer [11, 12]. The time‐multiplexed operation of this fibre memory is shown in [13] to emulate the (2 n − 1)‐stage 2 n × 2 n Benes network [14], which is a well‐known rearrangeable network consisting of purely 2 × 2 nodes and can be obtained by recursive application of 3‐stage interconnection [15]. The theoretical underpinning of the TSI construction in [1] is that 3‐stage interconnection preserves non‐blocking switching properties by constructing a large non‐blocking switch from small ones at nodes.…”