B-10-88 20Gb/s-10,000km分散マネージソリトン伝送システムの検討

概要

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Important goal in designing dispersion managed (DM) soliton system is to suppress the pulse-pulse interaction andGordon-Haus (GH) jiter. Each of these two effects degrades the system performance in different ways, and it depends on the varioussystem parameters, such as pulse width, signal launch power. Therefore, optimizing these parameters is a complex problem, especially for the system having long repeater spacing. In our previouswork, we optimized the dispersion compensation period value for10Gb/s DM soliton system to suppress G-H jiter effect. In this paper, we extend the system design by incorporating the pulse widthdependency. Through simulation analysis at 20 Gb/s, trade-off between pulse-pulse interaction and G-H effect are clearly found depending ontwo parameters. Based on the simulation analysis, we have succeeded a 20Gb/s DM soliton transmission experiment for over 10,000km with53km repeater spacing with wide repeater output power margin and wavelength tolerance.
1999-03-08