New switching element for large optical interconnection networks

Beniamino Castagnolo; Maria Rizzi; Mario Nicola Armenise; Vittorio M. N. Passaro; Tiziana Conese

doi:10.1117/12.141878

6 April 1993 New switching element for large optical interconnection networks

Beniamino Castagnolo, Maria Rizzi, Mario Nicola Armenise, Vittorio M. N. Passaro, Tiziana Conese

Proceedings Volume 1794, Integrated Optical Circuits II; (1993) https://doi.org/10.1117/12.141878
Event: Fibers '92, 1992, Boston, MA, United States

Abstract

Optical interconnection networks for linking a large number of users require the use of particular switching elements. For the classical 2 X 2 switching elements, in order to maintain the control voltage as low as possible, the length of the element cannot be less than a few millimeters. For this reason, the total number of stages implementable on a single LiNbO₃ crystal must be contained and the number of users N cannot be above 8. In order to extend the network dimensions, a different network architecture must be chosen which requires a new type of (alpha) X (beta) switching element. Generally speaking, (alpha) equals 2ⁿ and (beta) equals 2^m with n does not equal m. In this paper we present a 4 X 4 switching element for which two different solutions are considered. The design criteria of these structures are presented and the insertion loss and crosstalk are evaluated.

Citation Download Citation

Beniamino Castagnolo, Maria Rizzi, Mario Nicola Armenise, Vittorio M. N. Passaro, and Tiziana Conese "New switching element for large optical interconnection networks", Proc. SPIE 1794, Integrated Optical Circuits II, (6 April 1993); https://doi.org/10.1117/12.141878

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