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Recently, there has been a lot of attention on the constructions of optical queues by using optical Switches and fiber Delay Lines (SDL). In this paper, we consider the constructions of optical queues with a limited number of recirculations through the fibers in such SDL constructions. Such a limitation on the number of recirculations comes from practical feasibility considerations, such as crosstalk,...
In this paper, we prove a necessary and sufficient condition for the construction of 2-to-1 optical buffered first-in-first-out (FIFO) multiplexers by a single crossbar switch and fiber delay lines. We consider a feedback system consisting of an (M+2)times(M+2) crossbar switch and M fiber delay lines with delays d1,d2,...,dM. These M fiber delay lines are connected from M outputs of the crossbar switch...
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