Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 27, Issue 16, Pages 3721-3728Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2009.2024091
Keywords
Coherent single carrier transmission (COSC); chromatic dispersion (CD); digital signal processing; overlap frequency domain equalization (OFDE); long-haul optical communication systems
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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.
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