Evaluating the capacity of long haul soliton transmission

Smith, N J and Doran, Nick (1995). Evaluating the capacity of long haul soliton transmission. Optical fiber technology, 1 (3), pp. 218-235.

Abstract

We review recent developments in the use of optical solitons for communication systems spanning transoceanic distances. The implementation of "soliton control" to alleviate the detrimental impact of effects such as amplifier noise is shown to be critical for obtaining advantages over competing technologies. The potential performance of two control strategies, namely straight line filtering and synchronous phase modulation, is examined in detail. Design diagrams are used to determine the maximum permissible amplifier spacing, which is a key determinant of system economics. To focus the enquiry, two example system spans are taken, representing transatlantic and transpacific distances. It is concluded that straight line filtering provides very little improvement over a basic design without control. However synchronous phase modulation, which may be implemented using a handful of actively driven components, provides very substantial benefits. These may be used either to extend the overall bit-rate-distance product of the system or to increase the amplifier spacing at more moderate capacities.

Publication DOI: https://doi.org/10.1006/ofte.1995.1012
Uncontrolled Keywords: optical solitons, communication systems, transoceanic distances, detrimental impact, amplifier noise, straight line filtering, synchronous phase modulation
Published Date: 1995-06

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