Coherent Optical Single Carrier Transmission Using Overlap Frequency Domain Equalization for Long-Haul Optical Systems

In this paper, we present coherent optical single carrier transmission (COSC) using overlap frequency domain equalization (OFDE) for the chromatic dispersion (CD) compensation. Residual inter-symbol interference is suppressed by time domain equalization with small tap size. In single polarization tr...

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Veröffentlicht in:	Journal of lightwave technology 2009-08, Vol.27 (16), p.3721-3728
Hauptverfasser:	Kudo, R., Kobayashi, T., Ishihara, K., Takatori, Y., Sano, A., Miyamoto, Y.
Format:	Artikel
Sprache:	eng
Schlagworte:	Carriers Chromatic dispersion chromatic dispersion (CD) Coherence Coherent single carrier transmission (COSC) Compact disks Compensation Digital signal processing Dispersions Equalization Equalizers Frequency domain analysis Frequency domains long-haul optical communication systems OFDM Optical fiber communication Optical fiber polarization Optical fibers Optical signal processing overlap frequency domain equalization (OFDE) Polarization mode dispersion Q factor
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Beschreibung
Zusammenfassung:	In this paper, we present coherent optical single carrier transmission (COSC) using overlap frequency domain equalization (OFDE) for the chromatic dispersion (CD) compensation. Residual inter-symbol interference is suppressed by time domain equalization with small tap size. In single polarization transmission, 25-Gb/s COSC transmission with OFDE is demonstrated over 800 km to 4320 km of single-mode fiber (SMF) without optical dispersion compensation. The measured results show that the proposed configuration improves the transmission performance by setting adequate overlapped size of FFT windows and that it is suitable for long-haul optical communication systems.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2009.2024091