Joint nonlinearity and chromatic dispersion pre-compensation for coherent optical orthogonal frequency-division multiplexing systems

doi:10.1088/1674-1056/20/11/114212

Abstract This paper introduces a joint nonlinearity and chromatic dispersion pre-compensation method for coherent optical orthogonal frequency-division multiplexing systems. The research results show that this method can reduce the walk-off effect and can therefore equalize the nonlinear impairments effectively. Compared with the only other existing nonlinearity pre-compensation method, the joint nonlinearity and chromatic dispersion pre-compensation method is not only suitable for low-dispersion optical orthogonal frequency-division multiplexing system, but also effective for high-dispersion optical orthogonal frequency-division multiplexing transmission system with higher input power but without optical dispersion compensation. The suggested solution does not increase computation complexity compared with only nonlinearity pre-compensation method. For 40 Gbit/s coherent optical orthogonal frequency-division multiplexing 20×80 km standard single-mode fibre system, the suggested method can improve the nonlinear threshold (for Q > 10 dB) about 2.7, 1.2 and 1.0 dB, and the maximum Q factor about 1.2, 0.4 and 0.3 dB, for 2, 8 and 16 ps/(nm·km) dispersion coefficients.

Keywords: fibre optics nonlinearity chromatic dispersion coherent optical orthogonal frequency-division multiplexing

Received: 17 February 2011
Revised: 16 June 2011
Accepted manuscript online:

PACS:	42.65.Hw	(Phase conjugation; photorefractive and Kerr effects)
	42.79.Sz	(Optical communication systems, multiplexers, and demultiplexers?)

Fund: Project supported by the National High Technology Research and Development Program of China (Grant No. 2009AA01A345), the National Basic Research Program of China (Grant No. 2011CB302702), and the National Natural Science Foundation of China (Grant No. 60932004).

Cite this article:

Qiao Yao-Jun(乔耀军), Liu Xue-Jun (刘学君), and Ji Yue-Feng (纪越峰) Joint nonlinearity and chromatic dispersion pre-compensation for coherent optical orthogonal frequency-division multiplexing systems 2011 Chin. Phys. B 20 114212

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Joint nonlinearity and chromatic dispersion pre-compensation for coherent optical orthogonal frequency-division multiplexing systems

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