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Influence of crosstalk on the scalability of large OTDM interconnects using a novel fast time-slot tuner

Deng, K.-L. and Glesk, Ivan and Prucnal, P.R. and Kang, K.I. (1998) Influence of crosstalk on the scalability of large OTDM interconnects using a novel fast time-slot tuner. In: Conference on Lasers and Electro-Optics, 1998. IEEE, Piscataway, NJ, United States, pp. 4-5. ISBN 1557523390

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The scalability for optical multichannel networks and interconnects is an important design issue to accommodate an ever-growing number of users. It is therefore important that the channel selector at each node should be scalable to a large number of channels. However, the accumulation of interferometric cross-talk from each node may impose a strict constraint on the size of such a system. Recently we demonstrated a 1024-channel TDM tuner, which can be rapidly reconfigured to access any channel in a 50-Gbit/s OTDM system. Based on the cross-talk properties of the tuner, we consider in this paper the scalability of an OTDM interconnect system for a large number of nodes. The TDM tuner consists of a passive feedforward delay-lattice of k stages and two modulators at the input and output of the delay.