All-optical signal regeneration: from first principles to a 40 Gbit/s system demonstration
2003
Abstract As optical amplifiers have opened new perspectives for optical communication systems with ultra-high capacities and long-haul transmission distances (more than 1 Tbit/s over 10 000 km), fundamental limits are being reached. In order to overcome these propagation impairments, another technology revolution is soon required. Promising developments concern in-line all-optical regeneration, which makes it possible to transmit optical data over virtually unlimited distances. In this article, we recall the basic principle of Optical Regeneration in optical communication systems and review the current technology alternatives foreseen for future 40 Gbit/s transmission system implementation. The alternative offered by opto-electronic regeneration is also discussed, as to identify and highlight the advantages of the all-optical approach. To cite this article: O. Leclerc et al., C. R. Physique 4 (2003).
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