Soliton-Based Logic Gates and Soliton Transmission Systems (original) (raw)

Springer eBooks, 1998

Abstract

This chapter provides access to basic envelope solitons concepts, the motivation for their study in the area of electromagnetic wave transmission and, finally, the elements underpinning the proposed use for solitons in telecommunications. Since temporal envelope solitons are the basic physical entities that will be used, quite a lot of attention is paid to them, with a view to equipping the reader with basic system tools, quite rapidly. Logic gates are then introduced in a simple, and well-known, way but the ideas behind soliton dragging gates are exposed through numerical studies of soliton interactions. Two major possible constraints on a soliton transmission system, namely the Gordon-Haus effect and self-frequency shifting are discussed, in detail, and remedies to overcome these problems are outlined. The chapter ends with a discussion of soliton transmission systems and the chances of practical implementation, in the near to medium future. It is emphasised, throughout, that although semiconductors, especially low-dimensional ones, are integral parts of a complete soliton system, the approach here is to concentrate on what the system actually does. Hence there is a pervasive emphasis on solitons, rather than the semiconductor materials.

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