Abstract
Abstract. Imperfect isolation of switching elements inside optical space switches gives rise to leakage signals that can result in homodyne crosstalk. One way to reduce the influence of this phenomenon is to guaranty that only one signal traverses a switching element at a time. Nevertheless, for large optical space switches, based on this concept, the homodyne crosstalk can still have some influence. An analysis of the impact of this phenomenon, in this kind of switches, is developed. The results are compared with the ones obtained in switches built with no crosstalk restrictions and show that there is a compromise between the switching element crosstalk and the network cost. The analysis uses a rigorous approach based on the Gaussian Quadrature Rules method and the switches considered in this paper belong to the family of strictly non-blocking Horizontal Expanded and Vertical Replicated Banyan network.
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Cancela, L., Pires, J. (2003). Crosstalk Effects in Large Strictly Non-blocking Optical Switches Based on Directional Couplers. In: Freire, M.M., Lorenz, P., Lee, M.MO. (eds) High-Speed Networks and Multimedia Communications. HSNMC 2003. Lecture Notes in Computer Science, vol 2720. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45076-4_43
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DOI: https://doi.org/10.1007/978-3-540-45076-4_43
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